Add 42/16 and 84/30
1st number: 2 10/16, 2nd number: 2 24/30
42/16 + 84/30 is 217/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 30 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 16 × 15 = 240,
42/16 = 42 × 15/16 × 15 = 630/240 - Likewise, for the 2nd fraction, since 30 × 8 = 240,
84/30 = 84 × 8/30 × 8 = 672/240 - Add the two like fractions:
630/240 + 672/240 = 630 + 672/240 = 1302/240 - 1302/240 simplified gives 217/40
- So, 42/16 + 84/30 = 217/40
In mixed form: 517/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/16+84/30 42/32+84/30 42/16+84/60 42/48+84/30 42/16+84/90 42/80+84/30