Add 15/54 and 21/20
1st number: 15/54, 2nd number: 1 1/20
15/54 + 21/20 is 239/180.
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,
15/54 = 15 × 10/54 × 10 = 150/540 - Likewise, for the 2nd fraction, since 20 × 27 = 540,
21/20 = 21 × 27/20 × 27 = 567/540 - Add the two like fractions:
150/540 + 567/540 = 150 + 567/540 = 717/540 - 717/540 simplified gives 239/180
- So, 15/54 + 21/20 = 239/180
In mixed form: 159/180
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