Add 90/8 and 3/70
1st number: 11 2/8, 2nd number: 3/70
90/8 + 3/70 is 1581/140.
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,
90/8 = 90 × 35/8 × 35 = 3150/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
3/70 = 3 × 4/70 × 4 = 12/280 - Add the two like fractions:
3150/280 + 12/280 = 3150 + 12/280 = 3162/280 - 3162/280 simplified gives 1581/140
- So, 90/8 + 3/70 = 1581/140
In mixed form: 1141/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/8+6/70 90/16+3/70 90/8+9/70 90/24+3/70 90/8+15/70 90/40+3/70 90/8+21/70 90/56+3/70