Add 90/36 and 2/20
1st number: 2 18/36, 2nd number: 2/20
90/36 + 2/20 is 13/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
90/36 = 90 × 5/36 × 5 = 450/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
2/20 = 2 × 9/20 × 9 = 18/180 - Add the two like fractions:
450/180 + 18/180 = 450 + 18/180 = 468/180 - 468/180 simplified gives 13/5
- So, 90/36 + 2/20 = 13/5
In mixed form: 23/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/36+4/20 90/72+2/20 90/36+2/40 90/36+6/20 90/36+2/60 90/36+10/20 90/36+14/20