Add 25/90 and 3/20
25/90 + 3/20 is 77/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
25/90 = 25 × 2/90 × 2 = 50/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
3/20 = 3 × 9/20 × 9 = 27/180 - Add the two like fractions:
50/180 + 27/180 = 50 + 27/180 = 77/180 - So, 25/90 + 3/20 = 77/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/90+3/20 25/90+6/20 25/90+3/40 75/90+3/20 25/90+9/20 25/90+3/60 25/90+15/20 25/90+21/20