Subtract 12/30 from 49/56
49/56 - 12/30 is 19/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 30 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 56 × 15 = 840,
49/56 = 49 × 15/56 × 15 = 735/840 - Likewise, for the 2nd fraction, since 30 × 28 = 840,
12/30 = 12 × 28/30 × 28 = 336/840 - Subtract the two like fractions:
735/840 - 336/840 = 735 - 336/840 = 399/840 - After reducing the fraction, the answer is 19/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/56-12/30 49/56-24/30 49/56-12/60 49/56-36/30 49/56-12/90 49/56-60/30 49/56-84/30