Add 84/80 and 45/70
1st number: 1 4/80, 2nd number: 45/70
84/80 + 45/70 is 237/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 70 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 80 × 7 = 560,
84/80 = 84 × 7/80 × 7 = 588/560 - Likewise, for the 2nd fraction, since 70 × 8 = 560,
45/70 = 45 × 8/70 × 8 = 360/560 - Add the two like fractions:
588/560 + 360/560 = 588 + 360/560 = 948/560 - 948/560 simplified gives 237/140
- So, 84/80 + 45/70 = 237/140
In mixed form: 197/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/80+90/70