Add 15/10 and 40/45
1st number: 1 5/10, 2nd number: 40/45
15/10 + 40/45 is 43/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
15/10 = 15 × 9/10 × 9 = 135/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
40/45 = 40 × 2/45 × 2 = 80/90 - Add the two like fractions:
135/90 + 80/90 = 135 + 80/90 = 215/90 - 215/90 simplified gives 43/18
- So, 15/10 + 40/45 = 43/18
In mixed form: 27/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/10+40/45 15/10+80/45 15/20+40/45 15/10+40/90 45/10+40/45 15/30+40/45 75/10+40/45 15/50+40/45 15/70+40/45