Add 30/27 and 42/20
1st number: 1 3/27, 2nd number: 2 2/20
30/27 + 42/20 is 289/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 20 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 27 × 20 = 540,
30/27 = 30 × 20/27 × 20 = 600/540 - Likewise, for the 2nd fraction, since 20 × 27 = 540,
42/20 = 42 × 27/20 × 27 = 1134/540 - Add the two like fractions:
600/540 + 1134/540 = 600 + 1134/540 = 1734/540 - 1734/540 simplified gives 289/90
- So, 30/27 + 42/20 = 289/90
In mixed form: 319/90
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