Subtract 5/42 from 12/35
12/35 - 5/42 is 47/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 35 × 6 = 210,
12/35 = 12 × 6/35 × 6 = 72/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
5/42 = 5 × 5/42 × 5 = 25/210 - Subtract the two like fractions:
72/210 - 25/210 = 72 - 25/210 = 47/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/35-5/42 12/35-10/42 12/70-5/42 12/35-5/84 36/35-5/42 12/35-15/42 60/35-5/42 12/35-25/42 84/35-5/42 12/35-35/42