Add 24/42 and 7/90
24/42 + 7/90 is 409/630.
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,
24/42 = 24 × 15/42 × 15 = 360/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
7/90 = 7 × 7/90 × 7 = 49/630 - Add the two like fractions:
360/630 + 49/630 = 360 + 49/630 = 409/630 - So, 24/42 + 7/90 = 409/630
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/42+7/90 24/42+14/90 24/84+7/90 72/42+7/90 24/42+21/90 24/42+35/90 24/42+49/90