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Add 90/21 and 4/70

1st number: 4 6/21, 2nd number: 4/70

90/21 + 4/70 is 152/35.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 70 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 21 × 10 = 210,
    90/21 = 90 × 10/21 × 10 = 900/210
  3. Likewise, for the 2nd fraction, since 70 × 3 = 210,
    4/70 = 4 × 3/70 × 3 = 12/210
  4. Add the two like fractions:
    900/210 + 12/210 = 900 + 12/210 = 912/210
  5. 912/210 simplified gives 152/35
  6. So, 90/21 + 4/70 = 152/35
    In mixed form: 412/35

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