Add 42/27 and 30/20
1st number: 1 15/27, 2nd number: 1 10/20
42/27 + 30/20 is 55/18.
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,
42/27 = 42 × 20/27 × 20 = 840/540 - Likewise, for the 2nd fraction, since 20 × 27 = 540,
30/20 = 30 × 27/20 × 27 = 810/540 - Add the two like fractions:
840/540 + 810/540 = 840 + 810/540 = 1650/540 - 1650/540 simplified gives 55/18
- So, 42/27 + 30/20 = 55/18
In mixed form: 31/18
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