Add 72/15 and 14/20
1st number: 4 12/15, 2nd number: 14/20
72/15 + 14/20 is 11/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
72/15 = 72 × 4/15 × 4 = 288/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
14/20 = 14 × 3/20 × 3 = 42/60 - Add the two like fractions:
288/60 + 42/60 = 288 + 42/60 = 330/60 - 330/60 simplified gives 11/2
- So, 72/15 + 14/20 = 11/2
In mixed form: 51/2
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