Add 70/18 and 45/24
1st number: 3 16/18, 2nd number: 1 21/24
70/18 + 45/24 is 415/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 24 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 18 × 4 = 72,
70/18 = 70 × 4/18 × 4 = 280/72 - Likewise, for the 2nd fraction, since 24 × 3 = 72,
45/24 = 45 × 3/24 × 3 = 135/72 - Add the two like fractions:
280/72 + 135/72 = 280 + 135/72 = 415/72 - So, 70/18 + 45/24 = 415/72
In mixed form: 555/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/18+90/24 70/36+45/24 70/18+45/48 70/54+45/24 70/18+45/72 70/90+45/24