Add 90/36 and 16/21
1st number: 2 18/36, 2nd number: 16/21
90/36 + 16/21 is 137/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 21 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
90/36 = 90 × 7/36 × 7 = 630/252 - Likewise, for the 2nd fraction, since 21 × 12 = 252,
16/21 = 16 × 12/21 × 12 = 192/252 - Add the two like fractions:
630/252 + 192/252 = 630 + 192/252 = 822/252 - 822/252 simplified gives 137/42
- So, 90/36 + 16/21 = 137/42
In mixed form: 311/42
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