Subtract 72/10 from 16/30
1st number: 16/30, 2nd number: 7 2/10
16/30 - 72/10 is -20/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 10 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
16/30 = 16 × 1/30 × 1 = 16/30 - Likewise, for the 2nd fraction, since 10 × 3 = 30,
72/10 = 72 × 3/10 × 3 = 216/30 - Subtract the two like fractions:
16/30 - 216/30 = 16 - 216/30 = -200/30 - After reducing the fraction, the answer is -20/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/30-72/10 16/60-72/10 16/30-72/20 48/30-72/10 16/90-72/10 16/30-72/30 80/30-72/10 16/30-72/50 16/30-72/70