Add 72/20 and 12/54
1st number: 3 12/20, 2nd number: 12/54
72/20 + 12/54 is 172/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 54 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 20 × 27 = 540,
72/20 = 72 × 27/20 × 27 = 1944/540 - Likewise, for the 2nd fraction, since 54 × 10 = 540,
12/54 = 12 × 10/54 × 10 = 120/540 - Add the two like fractions:
1944/540 + 120/540 = 1944 + 120/540 = 2064/540 - 2064/540 simplified gives 172/45
- So, 72/20 + 12/54 = 172/45
In mixed form: 337/45
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