Add 18/20 and 20/54
18/20 + 20/54 is 343/270.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 54 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 20 × 27 = 540,
18/20 = 18 × 27/20 × 27 = 486/540 - Likewise, for the 2nd fraction, since 54 × 10 = 540,
20/54 = 20 × 10/54 × 10 = 200/540 - Add the two like fractions:
486/540 + 200/540 = 486 + 200/540 = 686/540 - 686/540 simplified gives 343/270
- So, 18/20 + 20/54 = 343/270
In mixed form: 173/270
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