Add 40/42 and 21/48
40/42 + 21/48 is 467/336.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 48 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 42 × 8 = 336,
40/42 = 40 × 8/42 × 8 = 320/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
21/48 = 21 × 7/48 × 7 = 147/336 - Add the two like fractions:
320/336 + 147/336 = 320 + 147/336 = 467/336 - So, 40/42 + 21/48 = 467/336
In mixed form: 1131/336
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