Subtract 48/10 from 72/28
1st number: 2 16/28, 2nd number: 4 8/10
72/28 - 48/10 is -78/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 10 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
72/28 = 72 × 5/28 × 5 = 360/140 - Likewise, for the 2nd fraction, since 10 × 14 = 140,
48/10 = 48 × 14/10 × 14 = 672/140 - Subtract the two like fractions:
360/140 - 672/140 = 360 - 672/140 = -312/140 - After reducing the fraction, the answer is -78/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/28-96/10 72/56-48/10 72/28-48/20 72/84-48/10 72/28-48/30 72/28-48/50 72/28-48/70