Add 90/70 and 35/27
1st number: 1 20/70, 2nd number: 1 8/27
90/70 + 35/27 is 488/189.
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,
90/70 = 90 × 27/70 × 27 = 2430/1890 - Likewise, for the 2nd fraction, since 27 × 70 = 1890,
35/27 = 35 × 70/27 × 70 = 2450/1890 - Add the two like fractions:
2430/1890 + 2450/1890 = 2430 + 2450/1890 = 4880/1890 - 4880/1890 simplified gives 488/189
- So, 90/70 + 35/27 = 488/189
In mixed form: 2110/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/70+70/27 90/70+35/54 90/70+35/81