Subtract 36/9 from 30/7
1st number: 4 2/7, 2nd number: 4 0/9
30/7 - 36/9 is 2/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 9 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 7 × 9 = 63,
30/7 = 30 × 9/7 × 9 = 270/63 - Likewise, for the 2nd fraction, since 9 × 7 = 63,
36/9 = 36 × 7/9 × 7 = 252/63 - Subtract the two like fractions:
270/63 - 252/63 = 270 - 252/63 = 18/63 - After reducing the fraction, the answer is 2/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/7-36/9 30/7-72/9 30/14-36/9 30/7-36/18 90/7-36/9 30/21-36/9 30/7-36/27 30/35-36/9 30/7-36/45 30/49-36/9 30/7-36/63