Add 30/16 and 40/42
1st number: 1 14/16, 2nd number: 40/42
30/16 + 40/42 is 475/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 42 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 16 × 21 = 336,
30/16 = 30 × 21/16 × 21 = 630/336 - Likewise, for the 2nd fraction, since 42 × 8 = 336,
40/42 = 40 × 8/42 × 8 = 320/336 - Add the two like fractions:
630/336 + 320/336 = 630 + 320/336 = 950/336 - 950/336 simplified gives 475/168
- So, 30/16 + 40/42 = 475/168
In mixed form: 2139/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/16+40/42 30/16+80/42 30/32+40/42 30/16+40/84 90/16+40/42 30/48+40/42 30/80+40/42