Add 72/12 and 21/14
1st number: 6 0/12, 2nd number: 1 7/14
72/12 + 21/14 is 15/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 14 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
72/12 = 72 × 7/12 × 7 = 504/84 - Likewise, for the 2nd fraction, since 14 × 6 = 84,
21/14 = 21 × 6/14 × 6 = 126/84 - Add the two like fractions:
504/84 + 126/84 = 504 + 126/84 = 630/84 - 630/84 simplified gives 15/2
- So, 72/12 + 21/14 = 15/2
In mixed form: 71/2
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