Add 9/72 and 63/35, Solve 9/72 + 1 28/35 as a fraction

Add 9/72 and 63/35

1^st number: 9/72, 2^nd number: 1 28/35

9/72 + 63/35 is 77/40.

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,
63/35 = 63 × 72/35 × 72 = 4536/2520
Add the two like fractions:
315/2520 + 4536/2520 = 315 + 4536/2520 = 4851/2520
4851/2520 simplified gives 77/40
So, 9/72 + 63/35 = 77/40
In mixed form: 137/40

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