Add 27/8 and 90/20
1st number: 3 3/8, 2nd number: 4 10/20
27/8 + 90/20 is 63/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 20 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
27/8 = 27 × 5/8 × 5 = 135/40 - Likewise, for the 2nd fraction, since 20 × 2 = 40,
90/20 = 90 × 2/20 × 2 = 180/40 - Add the two like fractions:
135/40 + 180/40 = 135 + 180/40 = 315/40 - 315/40 simplified gives 63/8
- So, 27/8 + 90/20 = 63/8
In mixed form: 77/8
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