Add 10/45 and 25/90
10/45 + 25/90 is 1/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
10/45 = 10 × 2/45 × 2 = 20/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
25/90 = 25 × 1/90 × 1 = 25/90 - Add the two like fractions:
20/90 + 25/90 = 20 + 25/90 = 45/90 - 45/90 simplified gives 1/2
- So, 10/45 + 25/90 = 1/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/45+25/90 10/45+50/90 10/90+25/90 30/45+25/90 10/45+75/90 50/45+25/90 70/45+25/90