Add 45/30 and 12/35
1st number: 1 15/30, 2nd number: 12/35
45/30 + 12/35 is 129/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 35 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 35 × 6 = 210,
12/35 = 12 × 6/35 × 6 = 72/210 - Add the two like fractions:
315/210 + 72/210 = 315 + 72/210 = 387/210 - 387/210 simplified gives 129/70
- So, 45/30 + 12/35 = 129/70
In mixed form: 159/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/30+12/35 45/30+24/35 45/60+12/35 45/30+12/70 45/30+36/35 45/90+12/35 45/30+60/35 45/30+84/35