Add 40/4 and 90/18
1st number: 10 0/4, 2nd number: 5 0/18
40/4 + 90/18 is 15/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 4 × 9 = 36,
40/4 = 40 × 9/4 × 9 = 360/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
90/18 = 90 × 2/18 × 2 = 180/36 - Add the two like fractions:
360/36 + 180/36 = 360 + 180/36 = 540/36 - 540/36 simplified gives 15/1
- So, 40/4 + 90/18 = 15/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/4+90/18 40/8+90/18 40/4+90/36 40/12+90/18 40/4+90/54 40/20+90/18 40/28+90/18