Subtract 42/5 from 30/60
1st number: 30/60, 2nd number: 8 2/5
30/60 - 42/5 is -79/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 5 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 60 × 1 = 60,
30/60 = 30 × 1/60 × 1 = 30/60 - Likewise, for the 2nd fraction, since 5 × 12 = 60,
42/5 = 42 × 12/5 × 12 = 504/60 - Subtract the two like fractions:
30/60 - 504/60 = 30 - 504/60 = -474/60 - After reducing the fraction, the answer is -79/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/60-84/5 30/60-42/10 90/60-42/5 30/60-42/15 30/60-42/25 30/60-42/35