Add 16/72 and 75/21, Solve 16/72 + 3 12/21 as a fraction

Add 16/72 and 75/21

1^st number: 16/72, 2^nd number: 3 12/21

16/72 + 75/21 is 239/63.

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

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 72 × 7 = 504,
16/72 = 16 × 7/72 × 7 = 112/504
Likewise, for the 2nd fraction, since 21 × 24 = 504,
75/21 = 75 × 24/21 × 24 = 1800/504
Add the two like fractions:
112/504 + 1800/504 = 112 + 1800/504 = 1912/504
1912/504 simplified gives 239/63
So, 16/72 + 75/21 = 239/63
In mixed form: 350/63

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