Subtract 30/10 from 8/4
1st number: 2 0/4, 2nd number: 3 0/10
8/4 - 30/10 is -1/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 10 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 4 × 5 = 20,
8/4 = 8 × 5/4 × 5 = 40/20 - Likewise, for the 2nd fraction, since 10 × 2 = 20,
30/10 = 30 × 2/10 × 2 = 60/20 - Subtract the two like fractions:
40/20 - 60/20 = 40 - 60/20 = -20/20 - After reducing the fraction, the answer is -1/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/4-30/10 8/4-60/10 8/4-30/20 24/4-30/10 8/4-90/10 8/12-30/10 40/4-30/10 8/20-30/10 8/4-30/50 56/4-30/10 8/28-30/10 8/4-30/70