Add 72/15 and 45/36
1st number: 4 12/15, 2nd number: 1 9/36
72/15 + 45/36 is 121/20.
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,
72/15 = 72 × 12/15 × 12 = 864/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
45/36 = 45 × 5/36 × 5 = 225/180 - Add the two like fractions:
864/180 + 225/180 = 864 + 225/180 = 1089/180 - 1089/180 simplified gives 121/20
- So, 72/15 + 45/36 = 121/20
In mixed form: 61/20
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