Add 30/21 and 72/24, Solve 1 9/21 + 3 0/24 as a fraction

Add 30/21 and 72/24

1^st number: 1 9/21, 2^nd number: 3 0/24

30/21 + 72/24 is 31/7.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 24 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 21 × 8 = 168,
30/21 = 30 × 8/21 × 8 = 240/168
Likewise, for the 2nd fraction, since 24 × 7 = 168,
72/24 = 72 × 7/24 × 7 = 504/168
Add the two like fractions:
240/168 + 504/168 = 240 + 504/168 = 744/168
744/168 simplified gives 31/7
So, 30/21 + 72/24 = 31/7
In mixed form: 43/7

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