Subtract 30/32 from 42/28
1st number: 1 14/28, 2nd number: 30/32
42/28 - 30/32 is 9/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 32 is 224
Next, find the equivalent fraction of both fractional numbers with denominator 224 - For the 1st fraction, since 28 × 8 = 224,
42/28 = 42 × 8/28 × 8 = 336/224 - Likewise, for the 2nd fraction, since 32 × 7 = 224,
30/32 = 30 × 7/32 × 7 = 210/224 - Subtract the two like fractions:
336/224 - 210/224 = 336 - 210/224 = 126/224 - After reducing the fraction, the answer is 9/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/28-30/32 42/28-60/32 42/56-30/32 42/28-30/64 42/28-90/32 42/84-30/32 42/28-30/96