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Add 84/10 and 18/28

1st number: 8 4/10, 2nd number: 18/28

84/10 + 18/28 is 633/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 28 is 140
  2. For the 1st fraction, since 10 × 14 = 140,
    84/10 = 84 × 14/10 × 14 = 1176/140
  3. Likewise, for the 2nd fraction, since 28 × 5 = 140,
    18/28 = 18 × 5/28 × 5 = 90/140
  4. Add the two fractions:
    1176/140 + 90/140 = 1176 + 90/140 = 1266/140
  5. 1266/140 simplified gives 633/70
  6. So, 84/10 + 18/28 = 633/70
    In mixed form: 93/70

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