Add 21/7 and 7/54
1st number: 3 0/7, 2nd number: 7/54
21/7 + 7/54 is 169/54.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 7 × 54 = 378,
21/7 = 21 × 54/7 × 54 = 1134/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
7/54 = 7 × 7/54 × 7 = 49/378 - Add the two like fractions:
1134/378 + 49/378 = 1134 + 49/378 = 1183/378 - 1183/378 simplified gives 169/54
- So, 21/7 + 7/54 = 169/54
In mixed form: 37/54
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