Add 15/8 and 9/70
1st number: 1 7/8, 2nd number: 9/70
15/8 + 9/70 is 561/280.
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,
15/8 = 15 × 35/8 × 35 = 525/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
9/70 = 9 × 4/70 × 4 = 36/280 - Add the two like fractions:
525/280 + 36/280 = 525 + 36/280 = 561/280 - So, 15/8 + 9/70 = 561/280
In mixed form: 21/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/8+9/70 15/8+18/70 15/16+9/70 45/8+9/70 15/8+27/70 15/24+9/70 75/8+9/70 15/8+45/70 15/40+9/70 15/8+63/70 15/56+9/70