Subtract 30/6 from 30/70
1st number: 30/70, 2nd number: 5 0/6
30/70 - 30/6 is -32/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 6 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
30/70 = 30 × 3/70 × 3 = 90/210 - Likewise, for the 2nd fraction, since 6 × 35 = 210,
30/6 = 30 × 35/6 × 35 = 1050/210 - Subtract the two like fractions:
90/210 - 1050/210 = 90 - 1050/210 = -960/210 - After reducing the fraction, the answer is -32/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/70-30/6 30/70-60/6 30/70-30/12 90/70-30/6 30/70-90/6 30/70-30/18 30/70-30/42