Add 30/8 and 40/7
1st number: 3 6/8, 2nd number: 5 5/7
30/8 + 40/7 is 265/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 7 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 8 × 7 = 56,
30/8 = 30 × 7/8 × 7 = 210/56 - Likewise, for the 2nd fraction, since 7 × 8 = 56,
40/7 = 40 × 8/7 × 8 = 320/56 - Add the two like fractions:
210/56 + 320/56 = 210 + 320/56 = 530/56 - 530/56 simplified gives 265/28
- So, 30/8 + 40/7 = 265/28
In mixed form: 913/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/8+40/7 30/8+80/7 30/16+40/7 30/8+40/14 90/8+40/7 30/24+40/7 30/8+40/21 30/40+40/7 30/8+40/35 30/56+40/7 30/8+40/49