Subtract 21/6 from 48/30
1st number: 1 18/30, 2nd number: 3 3/6
48/30 - 21/6 is -19/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 6 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 6 × 5 = 30,
21/6 = 21 × 5/6 × 5 = 105/30 - Subtract the two like fractions:
48/30 - 105/30 = 48 - 105/30 = -57/30 - After reducing the fraction, the answer is -19/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/30-21/6 48/30-42/6 48/60-21/6 48/30-21/12 48/30-63/6 48/90-21/6 48/30-21/18 48/30-21/30 48/30-21/42