Subtract 63/45 from 25/30
1st number: 25/30, 2nd number: 1 18/45
25/30 - 63/45 is -17/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
25/30 = 25 × 3/30 × 3 = 75/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
63/45 = 63 × 2/45 × 2 = 126/90 - Subtract the two like fractions:
75/90 - 126/90 = 75 - 126/90 = -51/90 - After reducing the fraction, the answer is -17/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/30-63/45 25/60-63/45 25/30-63/90 75/30-63/45 25/90-63/45