Add 81/60 and 90/27
1st number: 1 21/60, 2nd number: 3 9/27
81/60 + 90/27 is 281/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 27 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 60 × 9 = 540,
81/60 = 81 × 9/60 × 9 = 729/540 - Likewise, for the 2nd fraction, since 27 × 20 = 540,
90/27 = 90 × 20/27 × 20 = 1800/540 - Add the two like fractions:
729/540 + 1800/540 = 729 + 1800/540 = 2529/540 - 2529/540 simplified gives 281/60
- So, 81/60 + 90/27 = 281/60
In mixed form: 441/60
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