Add 9/84 and 21/49
9/84 + 21/49 is 15/28.
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,
9/84 = 9 × 7/84 × 7 = 63/588 - Likewise, for the 2nd fraction, since 49 × 12 = 588,
21/49 = 21 × 12/49 × 12 = 252/588 - Add the two like fractions:
63/588 + 252/588 = 63 + 252/588 = 315/588 - 315/588 simplified gives 15/28
- So, 9/84 + 21/49 = 15/28
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