Add 18/20 and 7/54
18/20 + 7/54 is 139/135.
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,
7/54 = 7 × 10/54 × 10 = 70/540 - Add the two like fractions:
486/540 + 70/540 = 486 + 70/540 = 556/540 - 556/540 simplified gives 139/135
- So, 18/20 + 7/54 = 139/135
In mixed form: 14/135
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