Subtract 4/70 from 16/30
16/30 - 4/70 is 10/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
16/30 = 16 × 7/30 × 7 = 112/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
4/70 = 4 × 3/70 × 3 = 12/210 - Subtract the two like fractions:
112/210 - 12/210 = 112 - 12/210 = 100/210 - After reducing the fraction, the answer is 10/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/30-4/70 16/30-8/70 16/60-4/70 48/30-4/70 16/30-12/70 16/90-4/70 80/30-4/70 16/30-20/70 16/30-28/70