Add 24/28 and 18/40
24/28 + 18/40 is 183/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 28 × 10 = 280,
24/28 = 24 × 10/28 × 10 = 240/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
18/40 = 18 × 7/40 × 7 = 126/280 - Add the two like fractions:
240/280 + 126/280 = 240 + 126/280 = 366/280 - 366/280 simplified gives 183/140
- So, 24/28 + 18/40 = 183/140
In mixed form: 143/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/28+18/40 24/28+36/40 24/56+18/40 24/28+18/80 72/28+18/40 24/28+54/40 24/84+18/40 24/28+90/40