Add 72/20 and 28/4
1st number: 3 12/20, 2nd number: 7 0/4
72/20 + 28/4 is 53/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 4 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 4 × 5 = 20,
28/4 = 28 × 5/4 × 5 = 140/20 - Add the two like fractions:
72/20 + 140/20 = 72 + 140/20 = 212/20 - 212/20 simplified gives 53/5
- So, 72/20 + 28/4 = 53/5
In mixed form: 103/5
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