Subtract 45/7 from 16/30
1st number: 16/30, 2nd number: 6 3/7
16/30 - 45/7 is -619/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 7 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 7 × 30 = 210,
45/7 = 45 × 30/7 × 30 = 1350/210 - Subtract the two like fractions:
112/210 - 1350/210 = 112 - 1350/210 = -1238/210 - After reducing the fraction, the answer is -619/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/30-45/7 16/30-90/7 16/60-45/7 16/30-45/14 48/30-45/7 16/90-45/7 16/30-45/21 80/30-45/7 16/30-45/35 16/30-45/49