Subtract 20/36 from 48/42
1st number: 1 6/42, 2nd number: 20/36
48/42 - 20/36 is 37/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 42 × 6 = 252,
48/42 = 48 × 6/42 × 6 = 288/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
20/36 = 20 × 7/36 × 7 = 140/252 - Subtract the two like fractions:
288/252 - 140/252 = 288 - 140/252 = 148/252 - After reducing the fraction, the answer is 37/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/42-20/36 48/42-40/36 48/84-20/36 48/42-20/72 48/42-60/36