Add 90/20 and 7/54
1st number: 4 10/20, 2nd number: 7/54
90/20 + 7/54 is 125/27.
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,
90/20 = 90 × 27/20 × 27 = 2430/540 - Likewise, for the 2nd fraction, since 54 × 10 = 540,
7/54 = 7 × 10/54 × 10 = 70/540 - Add the two like fractions:
2430/540 + 70/540 = 2430 + 70/540 = 2500/540 - 2500/540 simplified gives 125/27
- So, 90/20 + 7/54 = 125/27
In mixed form: 417/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/20+14/54 90/40+7/54 90/20+21/54 90/60+7/54 90/20+35/54 90/20+49/54