Add 9/40 and 7/30
9/40 + 7/30 is 11/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 30 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
9/40 = 9 × 3/40 × 3 = 27/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
7/30 = 7 × 4/30 × 4 = 28/120 - Add the two like fractions:
27/120 + 28/120 = 27 + 28/120 = 55/120 - 55/120 simplified gives 11/24
- So, 9/40 + 7/30 = 11/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/40+7/30 9/40+14/30 9/80+7/30 9/40+7/60 27/40+7/30 9/40+21/30 9/40+7/90 45/40+7/30 9/40+35/30 63/40+7/30 9/40+49/30