Add 12/72 and 21/7, Solve 12/72 + 3 0/7 as a fraction

Add 12/72 and 21/7

1^st number: 12/72, 2^nd number: 3 0/7

12/72 + 21/7 is 19/6.

Find the least common denominator or LCM of the two denominators:
LCM of 72 and 7 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 72 × 7 = 504,
12/72 = 12 × 7/72 × 7 = 84/504
Likewise, for the 2nd fraction, since 7 × 72 = 504,
21/7 = 21 × 72/7 × 72 = 1512/504
Add the two like fractions:
84/504 + 1512/504 = 84 + 1512/504 = 1596/504
1596/504 simplified gives 19/6
So, 12/72 + 21/7 = 19/6
In mixed form: 31/6

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