Add 28/30 and 90/35
1st number: 28/30, 2nd number: 2 20/35
28/30 + 90/35 is 368/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 35 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
28/30 = 28 × 7/30 × 7 = 196/210 - Likewise, for the 2nd fraction, since 35 × 6 = 210,
90/35 = 90 × 6/35 × 6 = 540/210 - Add the two like fractions:
196/210 + 540/210 = 196 + 540/210 = 736/210 - 736/210 simplified gives 368/105
- So, 28/30 + 90/35 = 368/105
In mixed form: 353/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/30+90/35 28/60+90/35 28/30+90/70 84/30+90/35 28/90+90/35