Subtract 40/10 from 48/30
1st number: 1 18/30, 2nd number: 4 0/10
48/30 - 40/10 is -12/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 10 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
48/30 = 48 × 1/30 × 1 = 48/30 - Likewise, for the 2nd fraction, since 10 × 3 = 30,
40/10 = 40 × 3/10 × 3 = 120/30 - Subtract the two like fractions:
48/30 - 120/30 = 48 - 120/30 = -72/30 - After reducing the fraction, the answer is -12/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/30-40/10 48/30-80/10 48/60-40/10 48/30-40/20 48/90-40/10 48/30-40/30 48/30-40/50 48/30-40/70