Add 27/90 and 5/4
1st number: 27/90, 2nd number: 1 1/4
27/90 + 5/4 is 31/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 4 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
27/90 = 27 × 2/90 × 2 = 54/180 - Likewise, for the 2nd fraction, since 4 × 45 = 180,
5/4 = 5 × 45/4 × 45 = 225/180 - Add the two like fractions:
54/180 + 225/180 = 54 + 225/180 = 279/180 - 279/180 simplified gives 31/20
- So, 27/90 + 5/4 = 31/20
In mixed form: 111/20
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