Add 7/84 and 6/80
7/84 + 6/80 is 19/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 80 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 84 × 20 = 1680,
7/84 = 7 × 20/84 × 20 = 140/1680 - Likewise, for the 2nd fraction, since 80 × 21 = 1680,
6/80 = 6 × 21/80 × 21 = 126/1680 - Add the two like fractions:
140/1680 + 126/1680 = 140 + 126/1680 = 266/1680 - 266/1680 simplified gives 19/120
- So, 7/84 + 6/80 = 19/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/84+6/80 7/84+12/80 21/84+6/80 7/84+18/80 35/84+6/80 7/84+30/80 49/84+6/80 7/84+42/80