Add 20/18 and 32/15
1st number: 1 2/18, 2nd number: 2 2/15
20/18 + 32/15 is 146/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 15 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
20/18 = 20 × 5/18 × 5 = 100/90 - Likewise, for the 2nd fraction, since 15 × 6 = 90,
32/15 = 32 × 6/15 × 6 = 192/90 - Add the two like fractions:
100/90 + 192/90 = 100 + 192/90 = 292/90 - 292/90 simplified gives 146/45
- So, 20/18 + 32/15 = 146/45
In mixed form: 311/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/18+32/15 20/18+64/15 20/36+32/15 20/18+32/30 60/18+32/15 20/18+96/15 20/54+32/15 20/18+32/45 20/90+32/15 20/18+32/75