Add 70/90 and 60/4
1st number: 70/90, 2nd number: 15 0/4
70/90 + 60/4 is 142/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 4 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
70/90 = 70 × 2/90 × 2 = 140/180 - Likewise, for the 2nd fraction, since 4 × 45 = 180,
60/4 = 60 × 45/4 × 45 = 2700/180 - Add the two like fractions:
140/180 + 2700/180 = 140 + 2700/180 = 2840/180 - 2840/180 simplified gives 142/9
- So, 70/90 + 60/4 = 142/9
In mixed form: 157/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/90+60/8 70/90+60/12 70/90+60/20 70/90+60/28