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Add 84/7 and 42/10

1st number: 12 0/7, 2nd number: 4 2/10

84/7 + 42/10 is 81/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 10 is 70

    Next, find the equivalent fraction of both fractional numbers with denominator 70
  2. For the 1st fraction, since 7 × 10 = 70,
    84/7 = 84 × 10/7 × 10 = 840/70
  3. Likewise, for the 2nd fraction, since 10 × 7 = 70,
    42/10 = 42 × 7/10 × 7 = 294/70
  4. Add the two like fractions:
    840/70 + 294/70 = 840 + 294/70 = 1134/70
  5. 1134/70 simplified gives 81/5
  6. So, 84/7 + 42/10 = 81/5
    In mixed form: 161/5

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