Add 40/8 and 70/7
1st number: 5 0/8, 2nd number: 10 0/7
40/8 + 70/7 is 15/1.
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,
40/8 = 40 × 7/8 × 7 = 280/56 - Likewise, for the 2nd fraction, since 7 × 8 = 56,
70/7 = 70 × 8/7 × 8 = 560/56 - Add the two like fractions:
280/56 + 560/56 = 280 + 560/56 = 840/56 - 840/56 simplified gives 15/1
- So, 40/8 + 70/7 = 15/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/8+70/7 40/16+70/7 40/8+70/14 40/24+70/7 40/8+70/21 40/8+70/35 40/56+70/7 40/8+70/49