Add 42/30 and 45/27
1st number: 1 12/30, 2nd number: 1 18/27
42/30 + 45/27 is 46/15.
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,
45/27 = 45 × 10/27 × 10 = 450/270 - Add the two like fractions:
378/270 + 450/270 = 378 + 450/270 = 828/270 - 828/270 simplified gives 46/15
- So, 42/30 + 45/27 = 46/15
In mixed form: 31/15
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