Add 30/7 and 8/70
1st number: 4 2/7, 2nd number: 8/70
30/7 + 8/70 is 22/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 7 × 10 = 70,
30/7 = 30 × 10/7 × 10 = 300/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
8/70 = 8 × 1/70 × 1 = 8/70 - Add the two like fractions:
300/70 + 8/70 = 300 + 8/70 = 308/70 - 308/70 simplified gives 22/5
- So, 30/7 + 8/70 = 22/5
In mixed form: 42/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/7+8/70 30/7+16/70 30/14+8/70 90/7+8/70 30/7+24/70 30/21+8/70 30/7+40/70 30/35+8/70 30/7+56/70 30/49+8/70