Add 40/16 and 9/90
1st number: 2 8/16, 2nd number: 9/90
40/16 + 9/90 is 13/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 90 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 16 × 45 = 720,
40/16 = 40 × 45/16 × 45 = 1800/720 - Likewise, for the 2nd fraction, since 90 × 8 = 720,
9/90 = 9 × 8/90 × 8 = 72/720 - Add the two like fractions:
1800/720 + 72/720 = 1800 + 72/720 = 1872/720 - 1872/720 simplified gives 13/5
- So, 40/16 + 9/90 = 13/5
In mixed form: 23/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/16+9/90 40/16+18/90 40/32+9/90 40/16+27/90 40/48+9/90 40/16+45/90 40/80+9/90 40/16+63/90