Add 40/45 and 70/7
1st number: 40/45, 2nd number: 10 0/7
40/45 + 70/7 is 98/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 7 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 45 × 7 = 315,
40/45 = 40 × 7/45 × 7 = 280/315 - Likewise, for the 2nd fraction, since 7 × 45 = 315,
70/7 = 70 × 45/7 × 45 = 3150/315 - Add the two like fractions:
280/315 + 3150/315 = 280 + 3150/315 = 3430/315 - 3430/315 simplified gives 98/9
- So, 40/45 + 70/7 = 98/9
In mixed form: 108/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/45+70/7 40/90+70/7 40/45+70/14 40/45+70/21 40/45+70/35 40/45+70/49