Add 42/30 and 21/27
1st number: 1 12/30, 2nd number: 21/27
42/30 + 21/27 is 98/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 27 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 30 × 9 = 270,
42/30 = 42 × 9/30 × 9 = 378/270 - Likewise, for the 2nd fraction, since 27 × 10 = 270,
21/27 = 21 × 10/27 × 10 = 210/270 - Add the two like fractions:
378/270 + 210/270 = 378 + 210/270 = 588/270 - 588/270 simplified gives 98/45
- So, 42/30 + 21/27 = 98/45
In mixed form: 28/45
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