Add 42/20 and 9/8
1st number: 2 2/20, 2nd number: 1 1/8
42/20 + 9/8 is 129/40.
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,
42/20 = 42 × 2/20 × 2 = 84/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
9/8 = 9 × 5/8 × 5 = 45/40 - Add the two like fractions:
84/40 + 45/40 = 84 + 45/40 = 129/40 - So, 42/20 + 9/8 = 129/40
In mixed form: 39/40
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