Subtract 30/21 from 1/16
1st number: 1/16, 2nd number: 1 9/21
1/16 - 30/21 is -153/112.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 21 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 16 × 21 = 336,
1/16 = 1 × 21/16 × 21 = 21/336 - Likewise, for the 2nd fraction, since 21 × 16 = 336,
30/21 = 30 × 16/21 × 16 = 480/336 - Subtract the two like fractions:
21/336 - 480/336 = 21 - 480/336 = -459/336 - After reducing the fraction, the answer is -153/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/16-30/21 1/16-60/21 1/32-30/21 1/16-30/42 3/16-30/21 1/16-90/21 1/48-30/21 1/16-30/63 5/16-30/21 1/80-30/21 7/16-30/21