Add 5/30 and 70/45
1st number: 5/30, 2nd number: 1 25/45
5/30 + 70/45 is 31/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
5/30 = 5 × 3/30 × 3 = 15/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
70/45 = 70 × 2/45 × 2 = 140/90 - Add the two like fractions:
15/90 + 140/90 = 15 + 140/90 = 155/90 - 155/90 simplified gives 31/18
- So, 5/30 + 70/45 = 31/18
In mixed form: 113/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/30+70/45 5/60+70/45 5/30+70/90 15/30+70/45 5/90+70/45 25/30+70/45 35/30+70/45