Add 15/84 and 14/80
15/84 + 14/80 is 99/280.
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,
15/84 = 15 × 20/84 × 20 = 300/1680 - Likewise, for the 2nd fraction, since 80 × 21 = 1680,
14/80 = 14 × 21/80 × 21 = 294/1680 - Add the two like fractions:
300/1680 + 294/1680 = 300 + 294/1680 = 594/1680 - 594/1680 simplified gives 99/280
- So, 15/84 + 14/80 = 99/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/84+14/80 15/84+28/80 45/84+14/80 15/84+42/80 75/84+14/80 15/84+70/80 15/84+98/80