Add 20/15 and 7/49
1st number: 1 5/15, 2nd number: 7/49
20/15 + 7/49 is 31/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 49 is 735
Next, find the equivalent fraction of both fractional numbers with denominator 735 - For the 1st fraction, since 15 × 49 = 735,
20/15 = 20 × 49/15 × 49 = 980/735 - Likewise, for the 2nd fraction, since 49 × 15 = 735,
7/49 = 7 × 15/49 × 15 = 105/735 - Add the two like fractions:
980/735 + 105/735 = 980 + 105/735 = 1085/735 - 1085/735 simplified gives 31/21
- So, 20/15 + 7/49 = 31/21
In mixed form: 110/21
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