Add 40/3 and 4/21
1st number: 13 1/3, 2nd number: 4/21
403 + 421 is 28421.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 21 is 21
Next, find the equivalent fraction of both fractional numbers with denominator 21 - For the 1st fraction, since 3 × 7 = 21,
403 = 40 × 73 × 7 = 28021 - Likewise, for the 2nd fraction, since 21 × 1 = 21,
421 = 4 × 121 × 1 = 421 - Add the two like fractions:
28021 + 421 = 280 + 421 = 28421 - So, 40/3 + 4/21 = 284/21
In mixed form: 131121
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