Add 80/21 and 21/12
1st number: 3 17/21, 2nd number: 1 9/12
8021 + 2112 is 46784.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 21 × 4 = 84,
8021 = 80 × 421 × 4 = 32084 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
2112 = 21 × 712 × 7 = 14784 - Add the two like fractions:
32084 + 14784 = 320 + 14784 = 46784 - So, 80/21 + 21/12 = 467/84
In mixed form: 54784
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