Add 15/84 and 16/80
15/84 + 16/80 is 53/140.
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,
16/80 = 16 × 21/80 × 21 = 336/1680 - Add the two like fractions:
300/1680 + 336/1680 = 300 + 336/1680 = 636/1680 - 636/1680 simplified gives 53/140
- So, 15/84 + 16/80 = 53/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/84+16/80 15/84+32/80 45/84+16/80 15/84+48/80 75/84+16/80