Add 21/48 and 18/21
21/48 + 18/21 is 145/112.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 21 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 48 × 7 = 336,
21/48 = 21 × 7/48 × 7 = 147/336 - Likewise, for the 2nd fraction, since 21 × 16 = 336,
18/21 = 18 × 16/21 × 16 = 288/336 - Add the two like fractions:
147/336 + 288/336 = 147 + 288/336 = 435/336 - 435/336 simplified gives 145/112
- So, 21/48 + 18/21 = 145/112
In mixed form: 133/112
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