Add 20/36 and 48/90
20/36 + 48/90 is 49/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
20/36 = 20 × 5/36 × 5 = 100/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
48/90 = 48 × 2/90 × 2 = 96/180 - Add the two like fractions:
100/180 + 96/180 = 100 + 96/180 = 196/180 - 196/180 simplified gives 49/45
- So, 20/36 + 48/90 = 49/45
In mixed form: 14/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/36+48/90 20/36+96/90 20/72+48/90 60/36+48/90