Subtract 50/16 from 30/42
1st number: 30/42, 2nd number: 3 2/16
30/42 - 50/16 is -135/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 16 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 42 × 8 = 336,
30/42 = 30 × 8/42 × 8 = 240/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
50/16 = 50 × 21/16 × 21 = 1050/336 - Subtract the two like fractions:
240/336 - 1050/336 = 240 - 1050/336 = -810/336 - After reducing the fraction, the answer is -135/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/42-50/16 30/84-50/16 30/42-50/32 90/42-50/16 30/42-50/48 30/42-50/80