Subtract 7/45 from 42/16
1st number: 2 10/16, 2nd number: 7/45
42/16 - 7/45 is 889/360.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 45 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 16 × 45 = 720,
42/16 = 42 × 45/16 × 45 = 1890/720 - Likewise, for the 2nd fraction, since 45 × 16 = 720,
7/45 = 7 × 16/45 × 16 = 112/720 - Subtract the two like fractions:
1890/720 - 112/720 = 1890 - 112/720 = 1778/720 - After reducing the fraction, the answer is 889/360
- In mixed form: 2169/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/16-7/45 42/16-14/45 42/32-7/45 42/16-7/90 42/16-21/45 42/48-7/45 42/16-35/45 42/80-7/45 42/16-49/45