Add 42/6 and 70/45
1st number: 7 0/6, 2nd number: 1 25/45
42/6 + 70/45 is 77/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 6 × 15 = 90,
42/6 = 42 × 15/6 × 15 = 630/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
70/45 = 70 × 2/45 × 2 = 140/90 - Add the two like fractions:
630/90 + 140/90 = 630 + 140/90 = 770/90 - 770/90 simplified gives 77/9
- So, 42/6 + 70/45 = 77/9
In mixed form: 85/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/6+70/45 42/12+70/45 42/6+70/90 42/18+70/45 42/30+70/45