Add 72/12 and 21/49
1st number: 6 0/12, 2nd number: 21/49
72/12 + 21/49 is 45/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 49 is 588
Next, find the equivalent fraction of both fractional numbers with denominator 588 - For the 1st fraction, since 12 × 49 = 588,
72/12 = 72 × 49/12 × 49 = 3528/588 - Likewise, for the 2nd fraction, since 49 × 12 = 588,
21/49 = 21 × 12/49 × 12 = 252/588 - Add the two like fractions:
3528/588 + 252/588 = 3528 + 252/588 = 3780/588 - 3780/588 simplified gives 45/7
- So, 72/12 + 21/49 = 45/7
In mixed form: 63/7
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