Add 10/40 and 15/10
1st number: 10/40, 2nd number: 1 5/10
10/40 + 15/10 is 7/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 10 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
10/40 = 10 × 1/40 × 1 = 10/40 - Likewise, for the 2nd fraction, since 10 × 4 = 40,
15/10 = 15 × 4/10 × 4 = 60/40 - Add the two like fractions:
10/40 + 60/40 = 10 + 60/40 = 70/40 - 70/40 simplified gives 7/4
- So, 10/40 + 15/10 = 7/4
In mixed form: 13/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/40+15/10 10/40+30/10 10/80+15/10 10/40+15/20 30/40+15/10 10/40+45/10 10/40+15/30 50/40+15/10 10/40+75/10 10/40+15/50 70/40+15/10 10/40+15/70