Add 81/8 and 45/70
1st number: 10 1/8, 2nd number: 45/70
81/8 + 45/70 is 603/56.
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,
81/8 = 81 × 35/8 × 35 = 2835/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
45/70 = 45 × 4/70 × 4 = 180/280 - Add the two like fractions:
2835/280 + 180/280 = 2835 + 180/280 = 3015/280 - 3015/280 simplified gives 603/56
- So, 81/8 + 45/70 = 603/56
In mixed form: 1043/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/8+90/70 81/16+45/70 81/24+45/70 81/40+45/70 81/56+45/70