Add 72/40 and 7/4
1st number: 1 32/40, 2nd number: 1 3/4
72/40 + 7/4 is 71/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 4 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
72/40 = 72 × 1/40 × 1 = 72/40 - Likewise, for the 2nd fraction, since 4 × 10 = 40,
7/4 = 7 × 10/4 × 10 = 70/40 - Add the two like fractions:
72/40 + 70/40 = 72 + 70/40 = 142/40 - 142/40 simplified gives 71/20
- So, 72/40 + 7/4 = 71/20
In mixed form: 311/20
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