Add 28/54 and 12/20
28/54 + 12/20 is 151/135.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 20 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 54 × 10 = 540,
28/54 = 28 × 10/54 × 10 = 280/540 - Likewise, for the 2nd fraction, since 20 × 27 = 540,
12/20 = 12 × 27/20 × 27 = 324/540 - Add the two like fractions:
280/540 + 324/540 = 280 + 324/540 = 604/540 - 604/540 simplified gives 151/135
- So, 28/54 + 12/20 = 151/135
In mixed form: 116/135
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