Add 30/70 and 60/4
1st number: 30/70, 2nd number: 15 0/4
30/70 + 60/4 is 108/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 4 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
30/70 = 30 × 2/70 × 2 = 60/140 - Likewise, for the 2nd fraction, since 4 × 35 = 140,
60/4 = 60 × 35/4 × 35 = 2100/140 - Add the two like fractions:
60/140 + 2100/140 = 60 + 2100/140 = 2160/140 - 2160/140 simplified gives 108/7
- So, 30/70 + 60/4 = 108/7
In mixed form: 153/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/70+60/4 30/70+60/8 90/70+60/4 30/70+60/12 30/70+60/20 30/70+60/28