Add 81/54 and 98/70
1st number: 1 27/54, 2nd number: 1 28/70
81/54 + 98/70 is 29/10.
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,
81/54 = 81 × 35/54 × 35 = 2835/1890 - Likewise, for the 2nd fraction, since 70 × 27 = 1890,
98/70 = 98 × 27/70 × 27 = 2646/1890 - Add the two like fractions:
2835/1890 + 2646/1890 = 2835 + 2646/1890 = 5481/1890 - 5481/1890 simplified gives 29/10
- So, 81/54 + 98/70 = 29/10
In mixed form: 29/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: