Subtract 3/10 from 25/84
25/84 - 3/10 is -1/420.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 10 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
25/84 = 25 × 5/84 × 5 = 125/420 - Likewise, for the 2nd fraction, since 10 × 42 = 420,
3/10 = 3 × 42/10 × 42 = 126/420 - Subtract the two like fractions:
125/420 - 126/420 = 125 - 126/420 = -1/420
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/84-3/10 25/84-6/10 25/84-3/20 75/84-3/10 25/84-9/10 25/84-3/30 25/84-15/10 25/84-3/50 25/84-21/10 25/84-3/70