Add 7/2 and 72/20
1st number: 3 1/2, 2nd number: 3 12/20
7/2 + 72/20 is 71/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 2 × 10 = 20,
7/2 = 7 × 10/2 × 10 = 70/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
72/20 = 72 × 1/20 × 1 = 72/20 - Add the two like fractions:
70/20 + 72/20 = 70 + 72/20 = 142/20 - 142/20 simplified gives 71/10
- So, 7/2 + 72/20 = 71/10
In mixed form: 71/10
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