Add 21/70 and 98/27
1st number: 21/70, 2nd number: 3 17/27
21/70 + 98/27 is 1061/270.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 27 is 1890
Next, find the equivalent fraction of both fractional numbers with denominator 1890 - For the 1st fraction, since 70 × 27 = 1890,
21/70 = 21 × 27/70 × 27 = 567/1890 - Likewise, for the 2nd fraction, since 27 × 70 = 1890,
98/27 = 98 × 70/27 × 70 = 6860/1890 - Add the two like fractions:
567/1890 + 6860/1890 = 567 + 6860/1890 = 7427/1890 - 7427/1890 simplified gives 1061/270
- So, 21/70 + 98/27 = 1061/270
In mixed form: 3251/270
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/70+98/27 21/70+98/54 63/70+98/27 21/70+98/81