Add 54/21 and 60/7
1st number: 2 12/21, 2nd number: 8 4/7
54/21 + 60/7 is 78/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 7 is 21
Next, find the equivalent fraction of both fractional numbers with denominator 21 - For the 1st fraction, since 21 × 1 = 21,
54/21 = 54 × 1/21 × 1 = 54/21 - Likewise, for the 2nd fraction, since 7 × 3 = 21,
60/7 = 60 × 3/7 × 3 = 180/21 - Add the two like fractions:
54/21 + 180/21 = 54 + 180/21 = 234/21 - 234/21 simplified gives 78/7
- So, 54/21 + 60/7 = 78/7
In mixed form: 111/7
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