Add 45/70 and 6/80
45/70 + 6/80 is 201/280.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 70 × 8 = 560,
45/70 = 45 × 8/70 × 8 = 360/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
6/80 = 6 × 7/80 × 7 = 42/560 - Add the two like fractions:
360/560 + 42/560 = 360 + 42/560 = 402/560 - 402/560 simplified gives 201/280
- So, 45/70 + 6/80 = 201/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/70+6/80 45/70+12/80 45/70+18/80 45/70+30/80 45/70+42/80