Add 10/21 and 54/20
1st number: 10/21, 2nd number: 2 14/20
10/21 + 54/20 is 667/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 20 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 21 × 20 = 420,
10/21 = 10 × 20/21 × 20 = 200/420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,
54/20 = 54 × 21/20 × 21 = 1134/420 - Add the two like fractions:
200/420 + 1134/420 = 200 + 1134/420 = 1334/420 - 1334/420 simplified gives 667/210
- So, 10/21 + 54/20 = 667/210
In mixed form: 337/210
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