Add 40/75 and 5/42
40/75 + 5/42 is 137/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 42 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 75 × 14 = 1050,
40/75 = 40 × 14/75 × 14 = 560/1050 - Likewise, for the 2nd fraction, since 42 × 25 = 1050,
5/42 = 5 × 25/42 × 25 = 125/1050 - Add the two like fractions:
560/1050 + 125/1050 = 560 + 125/1050 = 685/1050 - 685/1050 simplified gives 137/210
- So, 40/75 + 5/42 = 137/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/75+5/42 40/75+10/42 40/75+5/84 40/75+15/42 40/75+25/42 40/75+35/42