Add 90/36 and 32/21
1st number: 2 18/36, 2nd number: 1 11/21
90/36 + 32/21 is 169/42.
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,
32/21 = 32 × 12/21 × 12 = 384/252 - Add the two like fractions:
630/252 + 384/252 = 630 + 384/252 = 1014/252 - 1014/252 simplified gives 169/42
- So, 90/36 + 32/21 = 169/42
In mixed form: 41/42
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