Add 54/60 and 14/21
54/60 + 14/21 is 47/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 21 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 21 × 20 = 420,
14/21 = 14 × 20/21 × 20 = 280/420 - Add the two like fractions:
378/420 + 280/420 = 378 + 280/420 = 658/420 - 658/420 simplified gives 47/30
- So, 54/60 + 14/21 = 47/30
In mixed form: 117/30
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