Add 90/42 and 56/24
1st number: 2 6/42, 2nd number: 2 8/24
90/42 + 56/24 is 94/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 24 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 42 × 4 = 168,
90/42 = 90 × 4/42 × 4 = 360/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
56/24 = 56 × 7/24 × 7 = 392/168 - Add the two like fractions:
360/168 + 392/168 = 360 + 392/168 = 752/168 - 752/168 simplified gives 94/21
- So, 90/42 + 56/24 = 94/21
In mixed form: 410/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/84+56/24 90/42+56/48 90/42+56/72