Add 42/40 and 75/30
1st number: 1 2/40, 2nd number: 2 15/30
42/40 + 75/30 is 71/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 30 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
42/40 = 42 × 3/40 × 3 = 126/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
75/30 = 75 × 4/30 × 4 = 300/120 - Add the two like fractions:
126/120 + 300/120 = 126 + 300/120 = 426/120 - 426/120 simplified gives 71/20
- So, 42/40 + 75/30 = 71/20
In mixed form: 311/20
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