Add 90/20 and 60/32
1st number: 4 10/20, 2nd number: 1 28/32
90/20 + 60/32 is 51/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 32 is 160
Next, find the equivalent fraction of both fractional numbers with denominator 160 - For the 1st fraction, since 20 × 8 = 160,
90/20 = 90 × 8/20 × 8 = 720/160 - Likewise, for the 2nd fraction, since 32 × 5 = 160,
60/32 = 60 × 5/32 × 5 = 300/160 - Add the two like fractions:
720/160 + 300/160 = 720 + 300/160 = 1020/160 - 1020/160 simplified gives 51/8
- So, 90/20 + 60/32 = 51/8
In mixed form: 63/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/40+60/32 90/20+60/64 90/60+60/32 90/20+60/96