Add 15/8 and 35/40
1st number: 1 7/8, 2nd number: 35/40
15/8 + 35/40 is 11/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
15/8 = 15 × 5/8 × 5 = 75/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
35/40 = 35 × 1/40 × 1 = 35/40 - Add the two like fractions:
75/40 + 35/40 = 75 + 35/40 = 110/40 - 110/40 simplified gives 11/4
- So, 15/8 + 35/40 = 11/4
In mixed form: 23/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/8+35/40 15/8+70/40 15/16+35/40 15/8+35/80 45/8+35/40 15/24+35/40 75/8+35/40 15/40+35/40 15/56+35/40