Add 21/48 and 12/42
21/48 + 12/42 is 81/112.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 42 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 42 × 8 = 336,
12/42 = 12 × 8/42 × 8 = 96/336 - Add the two like fractions:
147/336 + 96/336 = 147 + 96/336 = 243/336 - 243/336 simplified gives 81/112
- So, 21/48 + 12/42 = 81/112
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