Add 21/28 and 30/48
21/28 + 30/48 is 11/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 48 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 28 × 12 = 336,
21/28 = 21 × 12/28 × 12 = 252/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
30/48 = 30 × 7/48 × 7 = 210/336 - Add the two like fractions:
252/336 + 210/336 = 252 + 210/336 = 462/336 - 462/336 simplified gives 11/8
- So, 21/28 + 30/48 = 11/8
In mixed form: 13/8
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