Add 12/5 and 42/40
1st number: 2 2/5, 2nd number: 1 2/40
12/5 + 42/40 is 69/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 5 × 8 = 40,
12/5 = 12 × 8/5 × 8 = 96/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
42/40 = 42 × 1/40 × 1 = 42/40 - Add the two like fractions:
96/40 + 42/40 = 96 + 42/40 = 138/40 - 138/40 simplified gives 69/20
- So, 12/5 + 42/40 = 69/20
In mixed form: 39/20
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