Add 12/70 and 20/54
12/70 + 20/54 is 512/945.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 54 is 1890
Next, find the equivalent fraction of both fractional numbers with denominator 1890 - For the 1st fraction, since 70 × 27 = 1890,
12/70 = 12 × 27/70 × 27 = 324/1890 - Likewise, for the 2nd fraction, since 54 × 35 = 1890,
20/54 = 20 × 35/54 × 35 = 700/1890 - Add the two like fractions:
324/1890 + 700/1890 = 324 + 700/1890 = 1024/1890 - 1024/1890 simplified gives 512/945
- So, 12/70 + 20/54 = 512/945
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/70+20/54 12/70+40/54 36/70+20/54 12/70+60/54 60/70+20/54 84/70+20/54