Add 28/15 and 21/36
1st number: 1 13/15, 2nd number: 21/36
28/15 + 21/36 is 49/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 15 × 12 = 180,
28/15 = 28 × 12/15 × 12 = 336/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
21/36 = 21 × 5/36 × 5 = 105/180 - Add the two like fractions:
336/180 + 105/180 = 336 + 105/180 = 441/180 - 441/180 simplified gives 49/20
- So, 28/15 + 21/36 = 49/20
In mixed form: 29/20
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