Subtract 30/8 from 16/10
1st number: 1 6/10, 2nd number: 3 6/8
16/10 - 30/8 is -43/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 10 × 4 = 40,
16/10 = 16 × 4/10 × 4 = 64/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
30/8 = 30 × 5/8 × 5 = 150/40 - Subtract the two like fractions:
64/40 - 150/40 = 64 - 150/40 = -86/40 - After reducing the fraction, the answer is -43/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/10-30/8 16/10-60/8 16/20-30/8 16/10-30/16 48/10-30/8 16/10-90/8 16/30-30/8 16/10-30/24 80/10-30/8 16/50-30/8 16/10-30/40 16/70-30/8 16/10-30/56