Add 21/12 and 70/49
1st number: 1 9/12, 2nd number: 1 21/49
21/12 + 70/49 is 89/28.
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,
21/12 = 21 × 49/12 × 49 = 1029/588 - Likewise, for the 2nd fraction, since 49 × 12 = 588,
70/49 = 70 × 12/49 × 12 = 840/588 - Add the two like fractions:
1029/588 + 840/588 = 1029 + 840/588 = 1869/588 - 1869/588 simplified gives 89/28
- So, 21/12 + 70/49 = 89/28
In mixed form: 35/28
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