Add 10/20 and 42/54
10/20 + 42/54 is 23/18.
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,
10/20 = 10 × 27/20 × 27 = 270/540 - Likewise, for the 2nd fraction, since 54 × 10 = 540,
42/54 = 42 × 10/54 × 10 = 420/540 - Add the two like fractions:
270/540 + 420/540 = 270 + 420/540 = 690/540 - 690/540 simplified gives 23/18
- So, 10/20 + 42/54 = 23/18
In mixed form: 15/18
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