Add 9/40 and 9/10
9/40 + 9/10 is 9/8.
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,
9/40 = 9 × 1/40 × 1 = 9/40 - Likewise, for the 2nd fraction, since 10 × 4 = 40,
9/10 = 9 × 4/10 × 4 = 36/40 - Add the two like fractions:
9/40 + 36/40 = 9 + 36/40 = 45/40 - 45/40 simplified gives 9/8
- So, 9/40 + 9/10 = 9/8
In mixed form: 11/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/40+9/10 9/40+18/10 9/80+9/10 9/40+9/20 27/40+9/10 9/40+27/10 9/40+9/30 45/40+9/10 9/40+45/10 9/40+9/50 63/40+9/10 9/40+63/10 9/40+9/70