Add 4/18 and 25/45
4/18 + 25/45 is 7/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
4/18 = 4 × 5/18 × 5 = 20/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
25/45 = 25 × 2/45 × 2 = 50/90 - Add the two like fractions:
20/90 + 50/90 = 20 + 50/90 = 70/90 - 70/90 simplified gives 7/9
- So, 4/18 + 25/45 = 7/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/18+25/45 4/18+50/45 4/36+25/45 4/18+25/90 12/18+25/45 4/18+75/45 4/54+25/45 20/18+25/45 4/90+25/45 28/18+25/45