Add 7/24 and 90/42
1st number: 7/24, 2nd number: 2 6/42
7/24 + 90/42 is 409/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 42 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 24 × 7 = 168,
7/24 = 7 × 7/24 × 7 = 49/168 - Likewise, for the 2nd fraction, since 42 × 4 = 168,
90/42 = 90 × 4/42 × 4 = 360/168 - Add the two like fractions:
49/168 + 360/168 = 49 + 360/168 = 409/168 - So, 7/24 + 90/42 = 409/168
In mixed form: 273/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/24+90/42 7/48+90/42 7/24+90/84 21/24+90/42 7/72+90/42 35/24+90/42 49/24+90/42