Add 70/14 and 45/72
1st number: 5 0/14, 2nd number: 45/72
70/14 + 45/72 is 45/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 14 × 36 = 504,
70/14 = 70 × 36/14 × 36 = 2520/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
45/72 = 45 × 7/72 × 7 = 315/504 - Add the two like fractions:
2520/504 + 315/504 = 2520 + 315/504 = 2835/504 - 2835/504 simplified gives 45/8
- So, 70/14 + 45/72 = 45/8
In mixed form: 55/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/14+90/72 70/28+45/72 70/42+45/72 70/98+45/72