Add 54/42 and 20/60
1st number: 1 12/42, 2nd number: 20/60
54/42 + 20/60 is 34/21.
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,
54/42 = 54 × 10/42 × 10 = 540/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
20/60 = 20 × 7/60 × 7 = 140/420 - Add the two like fractions:
540/420 + 140/420 = 540 + 140/420 = 680/420 - 680/420 simplified gives 34/21
- So, 54/42 + 20/60 = 34/21
In mixed form: 113/21
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