Add 9/72 and 56/35, Solve 9/72 + 1 21/35 as a fraction

Add 9/72 and 56/35

1^st number: 9/72, 2^nd number: 1 21/35

9/72 + 56/35 is 69/40.

Find the least common denominator or LCM of the two denominators:
LCM of 72 and 35 is 2520

Next, find the equivalent fraction of both fractional numbers with denominator 2520
For the 1st fraction, since 72 × 35 = 2520,
9/72 = 9 × 35/72 × 35 = 315/2520
Likewise, for the 2nd fraction, since 35 × 72 = 2520,
56/35 = 56 × 72/35 × 72 = 4032/2520
Add the two like fractions:
315/2520 + 4032/2520 = 315 + 4032/2520 = 4347/2520
4347/2520 simplified gives 69/40
So, 9/72 + 56/35 = 69/40
In mixed form: 129/40

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