Add 45/25 and 40/90
1st number: 1 20/25, 2nd number: 40/90
45/25 + 40/90 is 101/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 90 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 25 × 18 = 450,
45/25 = 45 × 18/25 × 18 = 810/450 - Likewise, for the 2nd fraction, since 90 × 5 = 450,
40/90 = 40 × 5/90 × 5 = 200/450 - Add the two like fractions:
810/450 + 200/450 = 810 + 200/450 = 1010/450 - 1010/450 simplified gives 101/45
- So, 45/25 + 40/90 = 101/45
In mixed form: 211/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/25+40/90 45/25+80/90 45/50+40/90 45/75+40/90