Add 90/42 and 16/21
1st number: 2 6/42, 2nd number: 16/21
90/42 + 16/21 is 61/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 21 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 21 × 2 = 42,
16/21 = 16 × 2/21 × 2 = 32/42 - Add the two like fractions:
90/42 + 32/42 = 90 + 32/42 = 122/42 - 122/42 simplified gives 61/21
- So, 90/42 + 16/21 = 61/21
In mixed form: 219/21
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