Add 27/7 and 18/40
1st number: 3 6/7, 2nd number: 18/40
27/7 + 18/40 is 603/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 7 × 40 = 280,
27/7 = 27 × 40/7 × 40 = 1080/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
18/40 = 18 × 7/40 × 7 = 126/280 - Add the two like fractions:
1080/280 + 126/280 = 1080 + 126/280 = 1206/280 - 1206/280 simplified gives 603/140
- So, 27/7 + 18/40 = 603/140
In mixed form: 443/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/7+18/40 27/7+36/40 27/14+18/40 27/7+18/80 81/7+18/40 27/7+54/40 27/21+18/40 27/7+90/40 27/35+18/40 27/49+18/40