Add 16/5 and 90/8
1st number: 3 1/5, 2nd number: 11 2/8
16/5 + 90/8 is 289/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 5 × 8 = 40,
16/5 = 16 × 8/5 × 8 = 128/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
90/8 = 90 × 5/8 × 5 = 450/40 - Add the two like fractions:
128/40 + 450/40 = 128 + 450/40 = 578/40 - 578/40 simplified gives 289/20
- So, 16/5 + 90/8 = 289/20
In mixed form: 149/20
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