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Add 30/70 and 21/8

1st number: 30/70, 2nd number: 2 5/8

30/70 + 21/8 is 171/56.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 8 is 280

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 70 × 4 = 280,
    30/70 = 30 × 4/70 × 4 = 120/280
  3. Likewise, for the 2nd fraction, since 8 × 35 = 280,
    21/8 = 21 × 35/8 × 35 = 735/280
  4. Add the two like fractions:
    120/280 + 735/280 = 120 + 735/280 = 855/280
  5. 855/280 simplified gives 171/56
  6. So, 30/70 + 21/8 = 171/56
    In mixed form: 33/56

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