Add 84/25 and 90/42
1st number: 3 9/25, 2nd number: 2 6/42
84/25 + 90/42 is 963/175.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 42 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 25 × 42 = 1050,
84/25 = 84 × 42/25 × 42 = 3528/1050 - Likewise, for the 2nd fraction, since 42 × 25 = 1050,
90/42 = 90 × 25/42 × 25 = 2250/1050 - Add the two like fractions:
3528/1050 + 2250/1050 = 3528 + 2250/1050 = 5778/1050 - 5778/1050 simplified gives 963/175
- So, 84/25 + 90/42 = 963/175
In mixed form: 588/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/50+90/42 84/25+90/84 84/75+90/42