Add 20/90 and 48/32
1st number: 20/90, 2nd number: 1 16/32
20/90 + 48/32 is 31/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 32 is 1440
Next, find the equivalent fraction of both fractional numbers with denominator 1440 - For the 1st fraction, since 90 × 16 = 1440,
20/90 = 20 × 16/90 × 16 = 320/1440 - Likewise, for the 2nd fraction, since 32 × 45 = 1440,
48/32 = 48 × 45/32 × 45 = 2160/1440 - Add the two like fractions:
320/1440 + 2160/1440 = 320 + 2160/1440 = 2480/1440 - 2480/1440 simplified gives 31/18
- So, 20/90 + 48/32 = 31/18
In mixed form: 113/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/90+48/32 20/90+96/32 20/90+48/64 60/90+48/32 20/90+48/96