Subtract 42/30 from 3/48
1st number: 3/48, 2nd number: 1 12/30
3/48 - 42/30 is -107/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 30 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 48 × 5 = 240,
3/48 = 3 × 5/48 × 5 = 15/240 - Likewise, for the 2nd fraction, since 30 × 8 = 240,
42/30 = 42 × 8/30 × 8 = 336/240 - Subtract the two like fractions:
15/240 - 336/240 = 15 - 336/240 = -321/240 - After reducing the fraction, the answer is -107/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/48-42/30 3/48-84/30 3/96-42/30 3/48-42/60 9/48-42/30 3/48-42/90 15/48-42/30 21/48-42/30