Add 42/30 and 98/90
1st number: 1 12/30, 2nd number: 1 8/90
42/30 + 98/90 is 112/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
42/30 = 42 × 3/30 × 3 = 126/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
98/90 = 98 × 1/90 × 1 = 98/90 - Add the two like fractions:
126/90 + 98/90 = 126 + 98/90 = 224/90 - 224/90 simplified gives 112/45
- So, 42/30 + 98/90 = 112/45
In mixed form: 222/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/30+98/90 42/60+98/90 42/90+98/90