Add 80/84 and 21/49
80/84 + 21/49 is 29/21.
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,
80/84 = 80 × 7/84 × 7 = 560/588 - Likewise, for the 2nd fraction, since 49 × 12 = 588,
21/49 = 21 × 12/49 × 12 = 252/588 - Add the two like fractions:
560/588 + 252/588 = 560 + 252/588 = 812/588 - 812/588 simplified gives 29/21
- So, 80/84 + 21/49 = 29/21
In mixed form: 18/21
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