Add 21/14 and 6/72, Solve 1 7/14 + 6/72 as a fraction

Add 21/14 and 6/72

1^st number: 1 7/14, 2^nd number: 6/72

21/14 + 6/72 is 19/12.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 72 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 14 × 36 = 504,
21/14 = 21 × 36/14 × 36 = 756/504
Likewise, for the 2nd fraction, since 72 × 7 = 504,
6/72 = 6 × 7/72 × 7 = 42/504
Add the two like fractions:
756/504 + 42/504 = 756 + 42/504 = 798/504
798/504 simplified gives 19/12
So, 21/14 + 6/72 = 19/12
In mixed form: 17/12

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