Add 49/70 and 72/30
1st number: 49/70, 2nd number: 2 12/30
49/70 + 72/30 is 31/10.
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,
49/70 = 49 × 3/70 × 3 = 147/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
72/30 = 72 × 7/30 × 7 = 504/210 - Add the two like fractions:
147/210 + 504/210 = 147 + 504/210 = 651/210 - 651/210 simplified gives 31/10
- So, 49/70 + 72/30 = 31/10
In mixed form: 31/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/70+72/30 49/70+72/60 49/70+72/90