Add 9/90 and 90/40
1st number: 9/90, 2nd number: 2 10/40
9/90 + 90/40 is 47/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
9/90 = 9 × 4/90 × 4 = 36/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
90/40 = 90 × 9/40 × 9 = 810/360 - Add the two like fractions:
36/360 + 810/360 = 36 + 810/360 = 846/360 - 846/360 simplified gives 47/20
- So, 9/90 + 90/40 = 47/20
In mixed form: 27/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/90+90/40 9/90+90/80 27/90+90/40 45/90+90/40 63/90+90/40