Add 90/42 and 21/49
1st number: 2 6/42, 2nd number: 21/49
90/42 + 21/49 is 18/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 49 is 294
Next, find the equivalent fraction of both fractional numbers with denominator 294 - For the 1st fraction, since 42 × 7 = 294,
90/42 = 90 × 7/42 × 7 = 630/294 - Likewise, for the 2nd fraction, since 49 × 6 = 294,
21/49 = 21 × 6/49 × 6 = 126/294 - Add the two like fractions:
630/294 + 126/294 = 630 + 126/294 = 756/294 - 756/294 simplified gives 18/7
- So, 90/42 + 21/49 = 18/7
In mixed form: 24/7
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