Add 25/42 and 27/90
25/42 + 27/90 is 94/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 42 × 15 = 630,
25/42 = 25 × 15/42 × 15 = 375/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
27/90 = 27 × 7/90 × 7 = 189/630 - Add the two like fractions:
375/630 + 189/630 = 375 + 189/630 = 564/630 - 564/630 simplified gives 94/105
- So, 25/42 + 27/90 = 94/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/42+27/90 25/42+54/90 25/84+27/90 75/42+27/90 25/42+81/90