Add 21/30 and 70/49
1st number: 21/30, 2nd number: 1 21/49
21/30 + 70/49 is 149/70.
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,
70/49 = 70 × 30/49 × 30 = 2100/1470 - Add the two like fractions:
1029/1470 + 2100/1470 = 1029 + 2100/1470 = 3129/1470 - 3129/1470 simplified gives 149/70
- So, 21/30 + 70/49 = 149/70
In mixed form: 29/70
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