Add 12/54 and 45/20
1st number: 12/54, 2nd number: 2 5/20
12/54 + 45/20 is 89/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 20 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 54 × 10 = 540,
12/54 = 12 × 10/54 × 10 = 120/540 - Likewise, for the 2nd fraction, since 20 × 27 = 540,
45/20 = 45 × 27/20 × 27 = 1215/540 - Add the two like fractions:
120/540 + 1215/540 = 120 + 1215/540 = 1335/540 - 1335/540 simplified gives 89/36
- So, 12/54 + 45/20 = 89/36
In mixed form: 217/36
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