Add 42/90 and 18/27
42/90 + 18/27 is 17/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 27 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 90 × 3 = 270,
42/90 = 42 × 3/90 × 3 = 126/270 - Likewise, for the 2nd fraction, since 27 × 10 = 270,
18/27 = 18 × 10/27 × 10 = 180/270 - Add the two like fractions:
126/270 + 180/270 = 126 + 180/270 = 306/270 - 306/270 simplified gives 17/15
- So, 42/90 + 18/27 = 17/15
In mixed form: 12/15
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