Add 75/30 and 90/12
1st number: 2 15/30, 2nd number: 7 6/12
75/30 + 90/12 is 10/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
75/30 = 75 × 2/30 × 2 = 150/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
90/12 = 90 × 5/12 × 5 = 450/60 - Add the two like fractions:
150/60 + 450/60 = 150 + 450/60 = 600/60 - 600/60 simplified gives 10/1
- So, 75/30 + 90/12 = 10/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/60+90/12 75/30+90/24 75/90+90/12 75/30+90/36 75/30+90/60 75/30+90/84