Add 90/12 and 24/42
1st number: 7 6/12, 2nd number: 24/42
90/12 + 24/42 is 113/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 42 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
90/12 = 90 × 7/12 × 7 = 630/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
24/42 = 24 × 2/42 × 2 = 48/84 - Add the two like fractions:
630/84 + 48/84 = 630 + 48/84 = 678/84 - 678/84 simplified gives 113/14
- So, 90/12 + 24/42 = 113/14
In mixed form: 81/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/12+48/42 90/24+24/42 90/12+24/84 90/12+72/42 90/36+24/42 90/60+24/42 90/84+24/42