Add 81/60 and 9/5
1st number: 1 21/60, 2nd number: 1 4/5
81/60 + 9/5 is 63/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 5 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 60 × 1 = 60,
81/60 = 81 × 1/60 × 1 = 81/60 - Likewise, for the 2nd fraction, since 5 × 12 = 60,
9/5 = 9 × 12/5 × 12 = 108/60 - Add the two like fractions:
81/60 + 108/60 = 81 + 108/60 = 189/60 - 189/60 simplified gives 63/20
- So, 81/60 + 9/5 = 63/20
In mixed form: 33/20
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