Add 42/40 and 27/90
1st number: 1 2/40, 2nd number: 27/90
42/40 + 27/90 is 27/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
42/40 = 42 × 9/40 × 9 = 378/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
27/90 = 27 × 4/90 × 4 = 108/360 - Add the two like fractions:
378/360 + 108/360 = 378 + 108/360 = 486/360 - 486/360 simplified gives 27/20
- So, 42/40 + 27/90 = 27/20
In mixed form: 17/20
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