Add 72/8 and 30/70
1st number: 9 0/8, 2nd number: 30/70
72/8 + 30/70 is 66/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 70 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 8 × 35 = 280,
72/8 = 72 × 35/8 × 35 = 2520/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
30/70 = 30 × 4/70 × 4 = 120/280 - Add the two like fractions:
2520/280 + 120/280 = 2520 + 120/280 = 2640/280 - 2640/280 simplified gives 66/7
- So, 72/8 + 30/70 = 66/7
In mixed form: 93/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/8+60/70 72/16+30/70 72/8+90/70 72/24+30/70 72/40+30/70 72/56+30/70