Add 10/21 and 36/54
10/21 + 36/54 is 8/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 21 × 18 = 378,
10/21 = 10 × 18/21 × 18 = 180/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
36/54 = 36 × 7/54 × 7 = 252/378 - Add the two like fractions:
180/378 + 252/378 = 180 + 252/378 = 432/378 - 432/378 simplified gives 8/7
- So, 10/21 + 36/54 = 8/7
In mixed form: 11/7
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