Add 21/30 and 63/49
1st number: 21/30, 2nd number: 1 14/49
21/30 + 63/49 is 139/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 49 is 1470
Next, find the equivalent fraction of both fractional numbers with denominator 1470 - For the 1st fraction, since 30 × 49 = 1470,
21/30 = 21 × 49/30 × 49 = 1029/1470 - Likewise, for the 2nd fraction, since 49 × 30 = 1470,
63/49 = 63 × 30/49 × 30 = 1890/1470 - Add the two like fractions:
1029/1470 + 1890/1470 = 1029 + 1890/1470 = 2919/1470 - 2919/1470 simplified gives 139/70
- So, 21/30 + 63/49 = 139/70
In mixed form: 169/70
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