Add 15/84 and 21/49
15/84 + 21/49 is 17/28.
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,
15/84 = 15 × 7/84 × 7 = 105/588 - Likewise, for the 2nd fraction, since 49 × 12 = 588,
21/49 = 21 × 12/49 × 12 = 252/588 - Add the two like fractions:
105/588 + 252/588 = 105 + 252/588 = 357/588 - 357/588 simplified gives 17/28
- So, 15/84 + 21/49 = 17/28
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