Add 9/20 and 42/54
9/20 + 42/54 is 221/180.
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,
9/20 = 9 × 27/20 × 27 = 243/540 - Likewise, for the 2nd fraction, since 54 × 10 = 540,
42/54 = 42 × 10/54 × 10 = 420/540 - Add the two like fractions:
243/540 + 420/540 = 243 + 420/540 = 663/540 - 663/540 simplified gives 221/180
- So, 9/20 + 42/54 = 221/180
In mixed form: 141/180
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