Add 2/21 and 90/48
1st number: 2/21, 2nd number: 1 42/48
2/21 + 90/48 is 331/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 48 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 21 × 16 = 336,
2/21 = 2 × 16/21 × 16 = 32/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
90/48 = 90 × 7/48 × 7 = 630/336 - Add the two like fractions:
32/336 + 630/336 = 32 + 630/336 = 662/336 - 662/336 simplified gives 331/168
- So, 2/21 + 90/48 = 331/168
In mixed form: 1163/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/21+90/48 2/42+90/48 2/21+90/96 6/21+90/48 2/63+90/48 10/21+90/48 14/21+90/48