Add 30/16 and 42/90
1st number: 1 14/16, 2nd number: 42/90
30/16 + 42/90 is 281/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 90 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 16 × 45 = 720,
30/16 = 30 × 45/16 × 45 = 1350/720 - Likewise, for the 2nd fraction, since 90 × 8 = 720,
42/90 = 42 × 8/90 × 8 = 336/720 - Add the two like fractions:
1350/720 + 336/720 = 1350 + 336/720 = 1686/720 - 1686/720 simplified gives 281/120
- So, 30/16 + 42/90 = 281/120
In mixed form: 241/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/16+42/90 30/16+84/90 30/32+42/90 90/16+42/90 30/48+42/90 30/80+42/90