Add 42/20 and 75/27
1st number: 2 2/20, 2nd number: 2 21/27
42/20 + 75/27 is 439/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 27 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 20 × 27 = 540,
42/20 = 42 × 27/20 × 27 = 1134/540 - Likewise, for the 2nd fraction, since 27 × 20 = 540,
75/27 = 75 × 20/27 × 20 = 1500/540 - Add the two like fractions:
1134/540 + 1500/540 = 1134 + 1500/540 = 2634/540 - 2634/540 simplified gives 439/90
- So, 42/20 + 75/27 = 439/90
In mixed form: 479/90
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