Add 70/25 and 45/18
1st number: 2 20/25, 2nd number: 2 9/18
70/25 + 45/18 is 53/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 18 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 25 × 18 = 450,
70/25 = 70 × 18/25 × 18 = 1260/450 - Likewise, for the 2nd fraction, since 18 × 25 = 450,
45/18 = 45 × 25/18 × 25 = 1125/450 - Add the two like fractions:
1260/450 + 1125/450 = 1260 + 1125/450 = 2385/450 - 2385/450 simplified gives 53/10
- So, 70/25 + 45/18 = 53/10
In mixed form: 53/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/25+90/18 70/50+45/18 70/25+45/36 70/75+45/18 70/25+45/54 70/25+45/90