Add 9/40 and 42/5
1st number: 9/40, 2nd number: 8 2/5
9/40 + 42/5 is 69/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 5 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
9/40 = 9 × 1/40 × 1 = 9/40 - Likewise, for the 2nd fraction, since 5 × 8 = 40,
42/5 = 42 × 8/5 × 8 = 336/40 - Add the two like fractions:
9/40 + 336/40 = 9 + 336/40 = 345/40 - 345/40 simplified gives 69/8
- So, 9/40 + 42/5 = 69/8
In mixed form: 85/8
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