Add 3/21 and 90/36
1st number: 3/21, 2nd number: 2 18/36
3/21 + 90/36 is 37/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 21 × 12 = 252,
3/21 = 3 × 12/21 × 12 = 36/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
90/36 = 90 × 7/36 × 7 = 630/252 - Add the two like fractions:
36/252 + 630/252 = 36 + 630/252 = 666/252 - 666/252 simplified gives 37/14
- So, 3/21 + 90/36 = 37/14
In mixed form: 29/14
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