Add 27/18 and 54/40
1st number: 1 9/18, 2nd number: 1 14/40
27/18 + 54/40 is 57/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 18 × 20 = 360,
27/18 = 27 × 20/18 × 20 = 540/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
54/40 = 54 × 9/40 × 9 = 486/360 - Add the two like fractions:
540/360 + 486/360 = 540 + 486/360 = 1026/360 - 1026/360 simplified gives 57/20
- So, 27/18 + 54/40 = 57/20
In mixed form: 217/20
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