Add 90/54 and 45/20
1st number: 1 36/54, 2nd number: 2 5/20
90/54 + 45/20 is 47/12.
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,
90/54 = 90 × 10/54 × 10 = 900/540 - Likewise, for the 2nd fraction, since 20 × 27 = 540,
45/20 = 45 × 27/20 × 27 = 1215/540 - Add the two like fractions:
900/540 + 1215/540 = 900 + 1215/540 = 2115/540 - 2115/540 simplified gives 47/12
- So, 90/54 + 45/20 = 47/12
In mixed form: 311/12
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