Add 5/15 and 42/49
5/15 + 42/49 is 25/21.
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,
5/15 = 5 × 49/15 × 49 = 245/735 - Likewise, for the 2nd fraction, since 49 × 15 = 735,
42/49 = 42 × 15/49 × 15 = 630/735 - Add the two like fractions:
245/735 + 630/735 = 245 + 630/735 = 875/735 - 875/735 simplified gives 25/21
- So, 5/15 + 42/49 = 25/21
In mixed form: 14/21
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