Add 28/72 and 12/15
28/72 + 12/15 is 107/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 15 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
28/72 = 28 × 5/72 × 5 = 140/360 - Likewise, for the 2nd fraction, since 15 × 24 = 360,
12/15 = 12 × 24/15 × 24 = 288/360 - Add the two like fractions:
140/360 + 288/360 = 140 + 288/360 = 428/360 - 428/360 simplified gives 107/90
- So, 28/72 + 12/15 = 107/90
In mixed form: 117/90
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