Subtract 63/30 from 25/28
1st number: 25/28, 2nd number: 2 3/30
25/28 - 63/30 is -169/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 30 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 28 × 15 = 420,
25/28 = 25 × 15/28 × 15 = 375/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
63/30 = 63 × 14/30 × 14 = 882/420 - Subtract the two like fractions:
375/420 - 882/420 = 375 - 882/420 = -507/420 - After reducing the fraction, the answer is -169/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/28-63/30 25/56-63/30 25/28-63/60 75/28-63/30 25/84-63/30 25/28-63/90