They are called multiplicands.
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4*5=201*20=2010*2=20
Multiply it backwards. 20 divided by 5 equals 4 4 times 5 equals 20
The product of 20 and 5 is 100. So when divided by the sum of 20 and 5, which is 25, it is 4. The problem is very simple. 100/25=4.
4 groups of 5 is the same as saying (4 x 5), so 4 groups of 5 would be 20.
In order to solve this problem, we must find a common denominator. For these two fractions, we'll use 20 as the common denominator. This gives us: 16/20 + 15/20 Add the numerators and you get 31/20 or 1 and 11/20.