Subtract 1/8 from 36/42
36/42 - 1/8 is 41/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 8 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 42 × 4 = 168,
36/42 = 36 × 4/42 × 4 = 144/168 - Likewise, for the 2nd fraction, since 8 × 21 = 168,
1/8 = 1 × 21/8 × 21 = 21/168 - Subtract the two like fractions:
144/168 - 21/168 = 144 - 21/168 = 123/168 - After reducing the fraction, the answer is 41/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/42-1/8 36/42-2/8 36/84-1/8 36/42-1/16 36/42-3/8 36/42-1/24 36/42-5/8 36/42-1/40 36/42-7/8 36/42-1/56