Add 28/54 and 16/21
28/54 + 16/21 is 242/189.
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,
28/54 = 28 × 7/54 × 7 = 196/378 - Likewise, for the 2nd fraction, since 21 × 18 = 378,
16/21 = 16 × 18/21 × 18 = 288/378 - Add the two like fractions:
196/378 + 288/378 = 196 + 288/378 = 484/378 - 484/378 simplified gives 242/189
- So, 28/54 + 16/21 = 242/189
In mixed form: 153/189
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