Add 24/21 and 16/72, Solve 1 3/21 + 16/72 as a fraction

Add 24/21 and 16/72

1^st number: 1 3/21, 2^nd number: 16/72

24/21 + 16/72 is 86/63.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 72 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 21 × 24 = 504,
24/21 = 24 × 24/21 × 24 = 576/504
Likewise, for the 2nd fraction, since 72 × 7 = 504,
16/72 = 16 × 7/72 × 7 = 112/504
Add the two like fractions:
576/504 + 112/504 = 576 + 112/504 = 688/504
688/504 simplified gives 86/63
So, 24/21 + 16/72 = 86/63
In mixed form: 123/63

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