Add 81/60 and 90/36
1st number: 1 21/60, 2nd number: 2 18/36
81/60 + 90/36 is 77/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 60 × 3 = 180,
81/60 = 81 × 3/60 × 3 = 243/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
90/36 = 90 × 5/36 × 5 = 450/180 - Add the two like fractions:
243/180 + 450/180 = 243 + 450/180 = 693/180 - 693/180 simplified gives 77/20
- So, 81/60 + 90/36 = 77/20
In mixed form: 317/20
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