Add 1/27 and 45/70
1/27 + 45/70 is 257/378.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 70 is 1890
Next, find the equivalent fraction of both fractional numbers with denominator 1890 - For the 1st fraction, since 27 × 70 = 1890,
1/27 = 1 × 70/27 × 70 = 70/1890 - Likewise, for the 2nd fraction, since 70 × 27 = 1890,
45/70 = 45 × 27/70 × 27 = 1215/1890 - Add the two like fractions:
70/1890 + 1215/1890 = 70 + 1215/1890 = 1285/1890 - 1285/1890 simplified gives 257/378
- So, 1/27 + 45/70 = 257/378
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/27+45/70 1/27+90/70 1/54+45/70 3/27+45/70 1/81+45/70 5/27+45/70 7/27+45/70