Add 20/45 and 4/25
20/45 + 4/25 is 136/225.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 25 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 45 × 5 = 225,
20/45 = 20 × 5/45 × 5 = 100/225 - Likewise, for the 2nd fraction, since 25 × 9 = 225,
4/25 = 4 × 9/25 × 9 = 36/225 - Add the two like fractions:
100/225 + 36/225 = 100 + 36/225 = 136/225 - So, 20/45 + 4/25 = 136/225
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/45+4/25 20/45+8/25 20/90+4/25 20/45+4/50 60/45+4/25 20/45+12/25 20/45+4/75 20/45+20/25 20/45+28/25