Add 90/30 and 7/4
1st number: 3 0/30, 2nd number: 1 3/4
90/30 + 7/4 is 19/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 4 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
90/30 = 90 × 2/30 × 2 = 180/60 - Likewise, for the 2nd fraction, since 4 × 15 = 60,
7/4 = 7 × 15/4 × 15 = 105/60 - Add the two like fractions:
180/60 + 105/60 = 180 + 105/60 = 285/60 - 285/60 simplified gives 19/4
- So, 90/30 + 7/4 = 19/4
In mixed form: 43/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/30+14/4 90/60+7/4 90/30+7/8 90/30+21/4 90/30+7/12 90/30+35/4 90/30+7/20 90/30+49/4 90/30+7/28