Add 72/45 and 81/60
1st number: 1 27/45, 2nd number: 1 21/60
72/45 + 81/60 is 59/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 60 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
72/45 = 72 × 4/45 × 4 = 288/180 - Likewise, for the 2nd fraction, since 60 × 3 = 180,
81/60 = 81 × 3/60 × 3 = 243/180 - Add the two like fractions:
288/180 + 243/180 = 288 + 243/180 = 531/180 - 531/180 simplified gives 59/20
- So, 72/45 + 81/60 = 59/20
In mixed form: 219/20
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