Subtract 2/40 from 9/30
9/30 - 2/40 is 1/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 30 × 4 = 120,
9/30 = 9 × 4/30 × 4 = 36/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
2/40 = 2 × 3/40 × 3 = 6/120 - Subtract the two like fractions:
36/120 - 6/120 = 36 - 6/120 = 30/120 - After reducing the fraction, the answer is 1/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/30-2/40 9/30-4/40 9/60-2/40 9/30-2/80 27/30-2/40 9/30-6/40 9/90-2/40 45/30-2/40 9/30-10/40 63/30-2/40 9/30-14/40