Add 8/84 and 40/7
1st number: 8/84, 2nd number: 5 5/7
8/84 + 40/7 is 122/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 7 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
8/84 = 8 × 1/84 × 1 = 8/84 - Likewise, for the 2nd fraction, since 7 × 12 = 84,
40/7 = 40 × 12/7 × 12 = 480/84 - Add the two like fractions:
8/84 + 480/84 = 8 + 480/84 = 488/84 - 488/84 simplified gives 122/21
- So, 8/84 + 40/7 = 122/21
In mixed form: 517/21
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