Add 90/42 and 21/7
1st number: 2 6/42, 2nd number: 3 0/7
90/42 + 21/7 is 36/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 7 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 42 × 1 = 42,
90/42 = 90 × 1/42 × 1 = 90/42 - Likewise, for the 2nd fraction, since 7 × 6 = 42,
21/7 = 21 × 6/7 × 6 = 126/42 - Add the two like fractions:
90/42 + 126/42 = 90 + 126/42 = 216/42 - 216/42 simplified gives 36/7
- So, 90/42 + 21/7 = 36/7
In mixed form: 51/7
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