Add 72/70 and 30/4
1st number: 1 2/70, 2nd number: 7 2/4
72/70 + 30/4 is 597/70.
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,
72/70 = 72 × 2/70 × 2 = 144/140 - Likewise, for the 2nd fraction, since 4 × 35 = 140,
30/4 = 30 × 35/4 × 35 = 1050/140 - Add the two like fractions:
144/140 + 1050/140 = 144 + 1050/140 = 1194/140 - 1194/140 simplified gives 597/70
- So, 72/70 + 30/4 = 597/70
In mixed form: 837/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/70+60/4 72/70+30/8 72/70+90/4 72/70+30/12 72/70+30/20 72/70+30/28