Add 70/10 and 42/54
1st number: 7 0/10, 2nd number: 42/54
70/10 + 42/54 is 70/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 10 × 27 = 270,
70/10 = 70 × 27/10 × 27 = 1890/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
42/54 = 42 × 5/54 × 5 = 210/270 - Add the two like fractions:
1890/270 + 210/270 = 1890 + 210/270 = 2100/270 - 2100/270 simplified gives 70/9
- So, 70/10 + 42/54 = 70/9
In mixed form: 77/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/10+84/54 70/20+42/54 70/30+42/54 70/50+42/54