Add 75/21 and 1/16
1st number: 3 12/21, 2nd number: 1/16
75/21 + 1/16 is 407/112.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 16 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 21 × 16 = 336,
75/21 = 75 × 16/21 × 16 = 1200/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
1/16 = 1 × 21/16 × 21 = 21/336 - Add the two like fractions:
1200/336 + 21/336 = 1200 + 21/336 = 1221/336 - 1221/336 simplified gives 407/112
- So, 75/21 + 1/16 = 407/112
In mixed form: 371/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/21+2/16 75/42+1/16 75/21+1/32 75/21+3/16 75/63+1/16 75/21+1/48 75/21+5/16 75/21+1/80 75/21+7/16