Subtract 42/25 from 3/30
1st number: 3/30, 2nd number: 1 17/25
3/30 - 42/25 is -79/50.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 25 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 30 × 5 = 150,
3/30 = 3 × 5/30 × 5 = 15/150 - Likewise, for the 2nd fraction, since 25 × 6 = 150,
42/25 = 42 × 6/25 × 6 = 252/150 - Subtract the two like fractions:
15/150 - 252/150 = 15 - 252/150 = -237/150 - After reducing the fraction, the answer is -79/50
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/30-42/25 3/30-84/25 3/60-42/25 3/30-42/50 9/30-42/25 3/90-42/25 3/30-42/75 15/30-42/25 21/30-42/25