Add 54/60 and 42/70
54/60 + 42/70 is 3/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 70 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
54/60 = 54 × 7/60 × 7 = 378/420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,
42/70 = 42 × 6/70 × 6 = 252/420 - Add the two like fractions:
378/420 + 252/420 = 378 + 252/420 = 630/420 - 630/420 simplified gives 3/2
- So, 54/60 + 42/70 = 3/2
In mixed form: 11/2
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