Subtract 75/16 from 42/30
1st number: 1 12/30, 2nd number: 4 11/16
42/30 - 75/16 is -263/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 16 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 30 × 8 = 240,
42/30 = 42 × 8/30 × 8 = 336/240 - Likewise, for the 2nd fraction, since 16 × 15 = 240,
75/16 = 75 × 15/16 × 15 = 1125/240 - Subtract the two like fractions:
336/240 - 1125/240 = 336 - 1125/240 = -789/240 - After reducing the fraction, the answer is -263/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/30-75/16 42/60-75/16 42/30-75/32 42/90-75/16 42/30-75/48 42/30-75/80