Add 21/84 and 70/49
1st number: 21/84, 2nd number: 1 21/49
21/84 + 70/49 is 47/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 49 is 588
Next, find the equivalent fraction of both fractional numbers with denominator 588 - For the 1st fraction, since 84 × 7 = 588,
21/84 = 21 × 7/84 × 7 = 147/588 - Likewise, for the 2nd fraction, since 49 × 12 = 588,
70/49 = 70 × 12/49 × 12 = 840/588 - Add the two like fractions:
147/588 + 840/588 = 147 + 840/588 = 987/588 - 987/588 simplified gives 47/28
- So, 21/84 + 70/49 = 47/28
In mixed form: 119/28
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