Add 1/15 and 40/90
1/15 + 40/90 is 23/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 15 × 6 = 90,
1/15 = 1 × 6/15 × 6 = 6/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
40/90 = 40 × 1/90 × 1 = 40/90 - Add the two like fractions:
6/90 + 40/90 = 6 + 40/90 = 46/90 - 46/90 simplified gives 23/45
- So, 1/15 + 40/90 = 23/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/15+40/90 1/15+80/90 1/30+40/90 3/15+40/90 1/45+40/90 5/15+40/90 1/75+40/90 7/15+40/90