Add 90/48 and 30/80
1st number: 1 42/48, 2nd number: 30/80
90/48 + 30/80 is 9/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 48 × 5 = 240,
90/48 = 90 × 5/48 × 5 = 450/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
30/80 = 30 × 3/80 × 3 = 90/240 - Add the two like fractions:
450/240 + 90/240 = 450 + 90/240 = 540/240 - 540/240 simplified gives 9/4
- So, 90/48 + 30/80 = 9/4
In mixed form: 21/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/48+60/80 90/96+30/80 90/48+90/80