Add 18/40 and 42/27
1st number: 18/40, 2nd number: 1 15/27
18/40 + 42/27 is 361/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 27 is 1080
Next, find the equivalent fraction of both fractional numbers with denominator 1080 - For the 1st fraction, since 40 × 27 = 1080,
18/40 = 18 × 27/40 × 27 = 486/1080 - Likewise, for the 2nd fraction, since 27 × 40 = 1080,
42/27 = 42 × 40/27 × 40 = 1680/1080 - Add the two like fractions:
486/1080 + 1680/1080 = 486 + 1680/1080 = 2166/1080 - 2166/1080 simplified gives 361/180
- So, 18/40 + 42/27 = 361/180
In mixed form: 21/180
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