Add 30/21 and 42/48
1st number: 1 9/21, 2nd number: 42/48
30/21 + 42/48 is 129/56.
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,
30/21 = 30 × 16/21 × 16 = 480/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
42/48 = 42 × 7/48 × 7 = 294/336 - Add the two like fractions:
480/336 + 294/336 = 480 + 294/336 = 774/336 - 774/336 simplified gives 129/56
- So, 30/21 + 42/48 = 129/56
In mixed form: 217/56
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