Add 45/30 and 64/70
1st number: 1 15/30, 2nd number: 64/70
45/30 + 64/70 is 169/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
45/30 = 45 × 7/30 × 7 = 315/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
64/70 = 64 × 3/70 × 3 = 192/210 - Add the two like fractions:
315/210 + 192/210 = 315 + 192/210 = 507/210 - 507/210 simplified gives 169/70
- So, 45/30 + 64/70 = 169/70
In mixed form: 229/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/30+64/70 45/60+64/70 45/90+64/70