Add 9/20 and 42/8
1st number: 9/20, 2nd number: 5 2/8
9/20 + 42/8 is 57/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 20 × 2 = 40,
9/20 = 9 × 2/20 × 2 = 18/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
42/8 = 42 × 5/8 × 5 = 210/40 - Add the two like fractions:
18/40 + 210/40 = 18 + 210/40 = 228/40 - 228/40 simplified gives 57/10
- So, 9/20 + 42/8 = 57/10
In mixed form: 57/10
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