Subtract 42/16 from 30/48
1st number: 30/48, 2nd number: 2 10/16
30/48 - 42/16 is -2/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 16 is 48
Next, find the equivalent fraction of both fractional numbers with denominator 48 - For the 1st fraction, since 48 × 1 = 48,
30/48 = 30 × 1/48 × 1 = 30/48 - Likewise, for the 2nd fraction, since 16 × 3 = 48,
42/16 = 42 × 3/16 × 3 = 126/48 - Subtract the two like fractions:
30/48 - 126/48 = 30 - 126/48 = -96/48 - After reducing the fraction, the answer is -2/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/48-42/16 30/48-84/16 30/96-42/16 30/48-42/32 90/48-42/16 30/48-42/48 30/48-42/80