Add 90/54 and 63/20
1st number: 1 36/54, 2nd number: 3 3/20
90/54 + 63/20 is 289/60.
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,
63/20 = 63 × 27/20 × 27 = 1701/540 - Add the two like fractions:
900/540 + 1701/540 = 900 + 1701/540 = 2601/540 - 2601/540 simplified gives 289/60
- So, 90/54 + 63/20 = 289/60
In mixed form: 449/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/54+63/40 90/54+63/60