Add 20/54 and 16/21
20/54 + 16/21 is 214/189.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 21 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 54 × 7 = 378,
20/54 = 20 × 7/54 × 7 = 140/378 - Likewise, for the 2nd fraction, since 21 × 18 = 378,
16/21 = 16 × 18/21 × 18 = 288/378 - Add the two like fractions:
140/378 + 288/378 = 140 + 288/378 = 428/378 - 428/378 simplified gives 214/189
- So, 20/54 + 16/21 = 214/189
In mixed form: 125/189
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