Add 72/20 and 7/5
1st number: 3 12/20, 2nd number: 1 2/5
72/20 + 7/5 is 5/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 5 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
72/20 = 72 × 1/20 × 1 = 72/20 - Likewise, for the 2nd fraction, since 5 × 4 = 20,
7/5 = 7 × 4/5 × 4 = 28/20 - Add the two like fractions:
72/20 + 28/20 = 72 + 28/20 = 100/20 - 100/20 simplified gives 5/1
- So, 72/20 + 7/5 = 5/1
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