Add 40/75 and 14/90
40/75 + 14/90 is 31/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 90 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 75 × 6 = 450,
40/75 = 40 × 6/75 × 6 = 240/450 - Likewise, for the 2nd fraction, since 90 × 5 = 450,
14/90 = 14 × 5/90 × 5 = 70/450 - Add the two like fractions:
240/450 + 70/450 = 240 + 70/450 = 310/450 - 310/450 simplified gives 31/45
- So, 40/75 + 14/90 = 31/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/75+14/90 40/75+28/90 40/75+42/90 40/75+70/90 40/75+98/90