Add 90/42 and 50/75
1st number: 2 6/42, 2nd number: 50/75
90/42 + 50/75 is 59/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 75 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 42 × 25 = 1050,
90/42 = 90 × 25/42 × 25 = 2250/1050 - Likewise, for the 2nd fraction, since 75 × 14 = 1050,
50/75 = 50 × 14/75 × 14 = 700/1050 - Add the two like fractions:
2250/1050 + 700/1050 = 2250 + 700/1050 = 2950/1050 - 2950/1050 simplified gives 59/21
- So, 90/42 + 50/75 = 59/21
In mixed form: 217/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/84+50/75