Subtract 12/40 from 30/5
1st number: 6 0/5, 2nd number: 12/40
30/5 - 12/40 is 57/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 5 × 8 = 40,
30/5 = 30 × 8/5 × 8 = 240/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
12/40 = 12 × 1/40 × 1 = 12/40 - Subtract the two like fractions:
240/40 - 12/40 = 240 - 12/40 = 228/40 - After reducing the fraction, the answer is 57/10
- In mixed form: 57/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/5-12/40 30/5-24/40 30/10-12/40 30/5-12/80 90/5-12/40 30/5-36/40 30/15-12/40 30/5-60/40 30/25-12/40 30/5-84/40 30/35-12/40