Add 8/54 and 15/70
8/54 + 15/70 is 137/378.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 70 is 1890
Next, find the equivalent fraction of both fractional numbers with denominator 1890 - For the 1st fraction, since 54 × 35 = 1890,
8/54 = 8 × 35/54 × 35 = 280/1890 - Likewise, for the 2nd fraction, since 70 × 27 = 1890,
15/70 = 15 × 27/70 × 27 = 405/1890 - Add the two like fractions:
280/1890 + 405/1890 = 280 + 405/1890 = 685/1890 - 685/1890 simplified gives 137/378
- So, 8/54 + 15/70 = 137/378
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/54+15/70 8/54+30/70 24/54+15/70 8/54+45/70 40/54+15/70 8/54+75/70 56/54+15/70