Subtract 40/35 from 9/30
1st number: 9/30, 2nd number: 1 5/35
9/30 - 40/35 is -59/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 35 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
9/30 = 9 × 7/30 × 7 = 63/210 - Likewise, for the 2nd fraction, since 35 × 6 = 210,
40/35 = 40 × 6/35 × 6 = 240/210 - Subtract the two like fractions:
63/210 - 240/210 = 63 - 240/210 = -177/210 - After reducing the fraction, the answer is -59/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/30-40/35 9/30-80/35 9/60-40/35 9/30-40/70 27/30-40/35 9/90-40/35 45/30-40/35 63/30-40/35