Add 75/70 and 30/4
1st number: 1 5/70, 2nd number: 7 2/4
75/70 + 30/4 is 60/7.
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,
75/70 = 75 × 2/70 × 2 = 150/140 - Likewise, for the 2nd fraction, since 4 × 35 = 140,
30/4 = 30 × 35/4 × 35 = 1050/140 - Add the two like fractions:
150/140 + 1050/140 = 150 + 1050/140 = 1200/140 - 1200/140 simplified gives 60/7
- So, 75/70 + 30/4 = 60/7
In mixed form: 84/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/70+60/4 75/70+30/8 75/70+90/4 75/70+30/12 75/70+30/20 75/70+30/28