Add 40/10 and 70/8
1st number: 4 0/10, 2nd number: 8 6/8
40/10 + 70/8 is 51/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 10 × 4 = 40,
40/10 = 40 × 4/10 × 4 = 160/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
70/8 = 70 × 5/8 × 5 = 350/40 - Add the two like fractions:
160/40 + 350/40 = 160 + 350/40 = 510/40 - 510/40 simplified gives 51/4
- So, 40/10 + 70/8 = 51/4
In mixed form: 123/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/10+70/8 40/20+70/8 40/10+70/16 40/30+70/8 40/10+70/24 40/50+70/8 40/10+70/40 40/70+70/8 40/10+70/56