Add 21/84 and 45/48
21/84 + 45/48 is 19/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 48 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 84 × 4 = 336,
21/84 = 21 × 4/84 × 4 = 84/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
45/48 = 45 × 7/48 × 7 = 315/336 - Add the two like fractions:
84/336 + 315/336 = 84 + 315/336 = 399/336 - 399/336 simplified gives 19/16
- So, 21/84 + 45/48 = 19/16
In mixed form: 13/16
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