Add 42/30 and 90/32
1st number: 1 12/30, 2nd number: 2 26/32
42/30 + 90/32 is 337/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 32 is 480
Next, find the equivalent fraction of both fractional numbers with denominator 480 - For the 1st fraction, since 30 × 16 = 480,
42/30 = 42 × 16/30 × 16 = 672/480 - Likewise, for the 2nd fraction, since 32 × 15 = 480,
90/32 = 90 × 15/32 × 15 = 1350/480 - Add the two like fractions:
672/480 + 1350/480 = 672 + 1350/480 = 2022/480 - 2022/480 simplified gives 337/80
- So, 42/30 + 90/32 = 337/80
In mixed form: 417/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/30+90/32 42/60+90/32 42/30+90/64 42/90+90/32 42/30+90/96