Add 21/20 and 3/36
1st number: 1 1/20, 2nd number: 3/36
21/20 + 3/36 is 17/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
21/20 = 21 × 9/20 × 9 = 189/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
3/36 = 3 × 5/36 × 5 = 15/180 - Add the two like fractions:
189/180 + 15/180 = 189 + 15/180 = 204/180 - 204/180 simplified gives 17/15
- So, 21/20 + 3/36 = 17/15
In mixed form: 12/15
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