Add 21/60 and 63/98
21/60 + 63/98 is 139/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 98 is 2940
Next, find the equivalent fraction of both fractional numbers with denominator 2940 - For the 1st fraction, since 60 × 49 = 2940,
21/60 = 21 × 49/60 × 49 = 1029/2940 - Likewise, for the 2nd fraction, since 98 × 30 = 2940,
63/98 = 63 × 30/98 × 30 = 1890/2940 - Add the two like fractions:
1029/2940 + 1890/2940 = 1029 + 1890/2940 = 2919/2940 - 2919/2940 simplified gives 139/140
- So, 21/60 + 63/98 = 139/140
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