Add 80/4 and 9/21
1st number: 20 0/4, 2nd number: 9/21
804 + 921 is 1437.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 21 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 4 × 21 = 84,
804 = 80 × 214 × 21 = 168084 - Likewise, for the 2nd fraction, since 21 × 4 = 84,
921 = 9 × 421 × 4 = 3684 - Add the two like fractions:
168084 + 3684 = 1680 + 3684 = 171684 - 1716/84 simplified gives 1437
- So, 80/4 + 9/21 = 143/7
In mixed form: 2037
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