Subtract 9/40 from 12/35
12/35 - 9/40 is 33/280.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 35 × 8 = 280,
12/35 = 12 × 8/35 × 8 = 96/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
9/40 = 9 × 7/40 × 7 = 63/280 - Subtract the two like fractions:
96/280 - 63/280 = 96 - 63/280 = 33/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/35-9/40 12/35-18/40 12/70-9/40 12/35-9/80 36/35-9/40 12/35-27/40 60/35-9/40 12/35-45/40 84/35-9/40 12/35-63/40