Add 5/75 and 40/70
5/75 + 40/70 is 67/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 70 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 75 × 14 = 1050,
5/75 = 5 × 14/75 × 14 = 70/1050 - Likewise, for the 2nd fraction, since 70 × 15 = 1050,
40/70 = 40 × 15/70 × 15 = 600/1050 - Add the two like fractions:
70/1050 + 600/1050 = 70 + 600/1050 = 670/1050 - 670/1050 simplified gives 67/105
- So, 5/75 + 40/70 = 67/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/75+40/70 5/75+80/70 15/75+40/70 25/75+40/70 35/75+40/70