Add 72/18 and 81/60
1st number: 4 0/18, 2nd number: 1 21/60
72/18 + 81/60 is 107/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 60 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 18 × 10 = 180,
72/18 = 72 × 10/18 × 10 = 720/180 - Likewise, for the 2nd fraction, since 60 × 3 = 180,
81/60 = 81 × 3/60 × 3 = 243/180 - Add the two like fractions:
720/180 + 243/180 = 720 + 243/180 = 963/180 - 963/180 simplified gives 107/20
- So, 72/18 + 81/60 = 107/20
In mixed form: 57/20
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