Subtract 4/16 from 42/54
42/54 - 4/16 is 19/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 16 is 432
Next, find the equivalent fraction of both fractional numbers with denominator 432 - For the 1st fraction, since 54 × 8 = 432,
42/54 = 42 × 8/54 × 8 = 336/432 - Likewise, for the 2nd fraction, since 16 × 27 = 432,
4/16 = 4 × 27/16 × 27 = 108/432 - Subtract the two like fractions:
336/432 - 108/432 = 336 - 108/432 = 228/432 - After reducing the fraction, the answer is 19/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/54-4/16 42/54-8/16 42/54-4/32 42/54-12/16 42/54-4/48 42/54-20/16 42/54-4/80 42/54-28/16