Subtract 12/16 from 49/70
49/70 - 12/16 is -1/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 16 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 70 × 8 = 560,
49/70 = 49 × 8/70 × 8 = 392/560 - Likewise, for the 2nd fraction, since 16 × 35 = 560,
12/16 = 12 × 35/16 × 35 = 420/560 - Subtract the two like fractions:
392/560 - 420/560 = 392 - 420/560 = -28/560 - After reducing the fraction, the answer is -1/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/70-12/16 49/70-24/16 49/70-12/32 49/70-36/16 49/70-12/48 49/70-60/16 49/70-12/80 49/70-84/16