Add 81/60 and 42/54
1st number: 1 21/60, 2nd number: 42/54
81/60 + 42/54 is 383/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 54 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 54 × 10 = 540,
42/54 = 42 × 10/54 × 10 = 420/540 - Add the two like fractions:
729/540 + 420/540 = 729 + 420/540 = 1149/540 - 1149/540 simplified gives 383/180
- So, 81/60 + 42/54 = 383/180
In mixed form: 223/180
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