Add 7/2 and 42/40
1st number: 3 1/2, 2nd number: 1 2/40
7/2 + 42/40 is 91/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 2 × 20 = 40,
7/2 = 7 × 20/2 × 20 = 140/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
42/40 = 42 × 1/40 × 1 = 42/40 - Add the two like fractions:
140/40 + 42/40 = 140 + 42/40 = 182/40 - 182/40 simplified gives 91/20
- So, 7/2 + 42/40 = 91/20
In mixed form: 411/20
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