Add 49/90 and 90/42
1st number: 49/90, 2nd number: 2 6/42
49/90 + 90/42 is 1693/630.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 42 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
49/90 = 49 × 7/90 × 7 = 343/630 - Likewise, for the 2nd fraction, since 42 × 15 = 630,
90/42 = 90 × 15/42 × 15 = 1350/630 - Add the two like fractions:
343/630 + 1350/630 = 343 + 1350/630 = 1693/630 - So, 49/90 + 90/42 = 1693/630
In mixed form: 2433/630
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/90+90/42 49/90+90/84