Add 42/54 and 8/20
42/54 + 8/20 is 53/45.
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,
42/54 = 42 × 10/54 × 10 = 420/540 - Likewise, for the 2nd fraction, since 20 × 27 = 540,
8/20 = 8 × 27/20 × 27 = 216/540 - Add the two like fractions:
420/540 + 216/540 = 420 + 216/540 = 636/540 - 636/540 simplified gives 53/45
- So, 42/54 + 8/20 = 53/45
In mixed form: 18/45
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