Subtract 63/9 from 75/30
1st number: 2 15/30, 2nd number: 7 0/9
75/30 - 63/9 is -9/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
75/30 = 75 × 3/30 × 3 = 225/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
63/9 = 63 × 10/9 × 10 = 630/90 - Subtract the two like fractions:
225/90 - 630/90 = 225 - 630/90 = -405/90 - After reducing the fraction, the answer is -9/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/60-63/9 75/30-63/18 75/90-63/9 75/30-63/27 75/30-63/45