Question

Find the product: $ 3.87 \times 1.25 $

Answer 1

Hint: First we have to define what the terms we need to solve the problem are.
Multiplicand refers to the number multiplied. Multiplier refers to the number that multiplies the first number. Have a look at an example; while multiplying $ 5 \times 7 $ the number $ 5 $ is called the multiplicand and the number $ 7 $ is called the multiplier. Thus $ 3.87 $ is the multiplicand and $ 1.25 $ is called the multiplier.

Complete step by step answer:
Multiplication often incorporates two values in a single value or product and the two initial quantities are known as multiplicand and the multiplier.
Hence as we see above multiplication is the times of addition the given number
Now find the product: $ 3.87 \times 1.25 $
Let us simplify the decimal terms as pure integers so that multiplication will be easier
So $ \dfrac{{387}}{{100}} \times \dfrac{{125}}{{100}} $ (is a pure integer in numerator)
Hence multiplying by multiplicand and the multiplier we get $ \dfrac{{387}}{{100}} \times \dfrac{{125}}{{100}} = \dfrac{{48375}}{{10000}} $ (times)
Thus, if we act the division for fraction values, we get $ \dfrac{{48375}}{{10000}} = 4.8375 $
Hence the product of $ 3.87 \times 1.25 $ is $ 4.8375 $

Note: we can also simply multiply the given terms without turning into fraction but careful at the decimal values it may confuse us ( $ 3.87 \times 1.25 $ = $ 4.8375 $ )
The inverse of the multiplication method called the division. Like $ x \times y = z $ is multiplication thus the division sees as $ x = \dfrac{z}{y} $ . We usually need to remember the multiplication tables in childhood so it will be helpful to do maths.