Add 98/70 and 45/30
1st number: 1 28/70, 2nd number: 1 15/30
98/70 + 45/30 is 29/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
98/70 = 98 × 3/70 × 3 = 294/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
45/30 = 45 × 7/30 × 7 = 315/210 - Add the two like fractions:
294/210 + 315/210 = 294 + 315/210 = 609/210 - 609/210 simplified gives 29/10
- So, 98/70 + 45/30 = 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: 98/70+90/30 98/70+45/60 98/70+45/90