Subtract 36/20 from 48/30
1st number: 1 18/30, 2nd number: 1 16/20
48/30 - 36/20 is -1/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
48/30 = 48 × 2/30 × 2 = 96/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
36/20 = 36 × 3/20 × 3 = 108/60 - Subtract the two like fractions:
96/60 - 108/60 = 96 - 108/60 = -12/60 - After reducing the fraction, the answer is -1/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/30-36/20 48/30-72/20 48/60-36/20 48/30-36/40 48/90-36/20 48/30-36/60