Add 9/8 and 30/70
1st number: 1 1/8, 2nd number: 30/70
9/8 + 30/70 is 87/56.
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,
9/8 = 9 × 35/8 × 35 = 315/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
30/70 = 30 × 4/70 × 4 = 120/280 - Add the two like fractions:
315/280 + 120/280 = 315 + 120/280 = 435/280 - 435/280 simplified gives 87/56
- So, 9/8 + 30/70 = 87/56
In mixed form: 131/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/8+30/70 9/8+60/70 9/16+30/70 27/8+30/70 9/8+90/70 9/24+30/70 45/8+30/70 9/40+30/70 63/8+30/70 9/56+30/70