Subtract 30/16 from 63/70
1st number: 63/70, 2nd number: 1 14/16
63/70 - 30/16 is -39/40.
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,
63/70 = 63 × 8/70 × 8 = 504/560 - Likewise, for the 2nd fraction, since 16 × 35 = 560,
30/16 = 30 × 35/16 × 35 = 1050/560 - Subtract the two like fractions:
504/560 - 1050/560 = 504 - 1050/560 = -546/560 - After reducing the fraction, the answer is -39/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/70-60/16 63/70-30/32 63/70-90/16 63/70-30/48 63/70-30/80