Subtract 18/40 from 63/35
1st number: 1 28/35, 2nd number: 18/40
63/35 - 18/40 is 27/20.
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,
63/35 = 63 × 8/35 × 8 = 504/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
18/40 = 18 × 7/40 × 7 = 126/280 - Subtract the two like fractions:
504/280 - 126/280 = 504 - 126/280 = 378/280 - After reducing the fraction, the answer is 27/20
- In mixed form: 17/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/35-36/40 63/70-18/40 63/35-18/80 63/35-54/40 63/35-90/40