Add 81/42 and 40/60
1st number: 1 39/42, 2nd number: 40/60
81/42 + 40/60 is 109/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 42 × 10 = 420,
81/42 = 81 × 10/42 × 10 = 810/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
40/60 = 40 × 7/60 × 7 = 280/420 - Add the two like fractions:
810/420 + 280/420 = 810 + 280/420 = 1090/420 - 1090/420 simplified gives 109/42
- So, 81/42 + 40/60 = 109/42
In mixed form: 225/42
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