Add 24/18 and 90/7
1st number: 1 6/18, 2nd number: 12 6/7
24/18 + 90/7 is 298/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 7 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
24/18 = 24 × 7/18 × 7 = 168/126 - Likewise, for the 2nd fraction, since 7 × 18 = 126,
90/7 = 90 × 18/7 × 18 = 1620/126 - Add the two like fractions:
168/126 + 1620/126 = 168 + 1620/126 = 1788/126 - 1788/126 simplified gives 298/21
- So, 24/18 + 90/7 = 298/21
In mixed form: 144/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/18+90/7 24/36+90/7 24/18+90/14 72/18+90/7 24/54+90/7 24/18+90/21 24/90+90/7 24/18+90/35 24/18+90/49