Subtract 30/32 from 21/5
1st number: 4 1/5, 2nd number: 30/32
21/5 - 30/32 is 261/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 32 is 160
Next, find the equivalent fraction of both fractional numbers with denominator 160 - For the 1st fraction, since 5 × 32 = 160,
21/5 = 21 × 32/5 × 32 = 672/160 - Likewise, for the 2nd fraction, since 32 × 5 = 160,
30/32 = 30 × 5/32 × 5 = 150/160 - Subtract the two like fractions:
672/160 - 150/160 = 672 - 150/160 = 522/160 - After reducing the fraction, the answer is 261/80
- In mixed form: 321/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/5-30/32 21/5-60/32 21/10-30/32 21/5-30/64 63/5-30/32 21/5-90/32 21/15-30/32 21/5-30/96 21/25-30/32 21/35-30/32