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Add 70/21 and 5/8

1st number: 3 7/21, 2nd number: 5/8

70/21 + 5/8 is 95/24.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 8 is 168
  2. For the 1st fraction, since 21 × 8 = 168,
    70/21 = 70 × 8/21 × 8 = 560/168
  3. Likewise, for the 2nd fraction, since 8 × 21 = 168,
    5/8 = 5 × 21/8 × 21 = 105/168
  4. Add the two fractions:
    560/168 + 105/168 = 560 + 105/168 = 665/168
  5. 665/168 simplified gives 95/24
  6. So, 70/21 + 5/8 = 95/24
    In mixed form: 323/24

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