Add 21/72 and 63/98
21/72 + 63/98 is 157/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 98 is 3528
Next, find the equivalent fraction of both fractional numbers with denominator 3528 - For the 1st fraction, since 72 × 49 = 3528,
21/72 = 21 × 49/72 × 49 = 1029/3528 - Likewise, for the 2nd fraction, since 98 × 36 = 3528,
63/98 = 63 × 36/98 × 36 = 2268/3528 - Add the two like fractions:
1029/3528 + 2268/3528 = 1029 + 2268/3528 = 3297/3528 - 3297/3528 simplified gives 157/168
- So, 21/72 + 63/98 = 157/168
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