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Add 45/10 and 70/21

1st number: 4 5/10, 2nd number: 3 7/21

45/10 + 70/21 is 47/6.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 21 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 10 × 21 = 210,
    45/10 = 45 × 21/10 × 21 = 945/210
  3. Likewise, for the 2nd fraction, since 21 × 10 = 210,
    70/21 = 70 × 10/21 × 10 = 700/210
  4. Add the two like fractions:
    945/210 + 700/210 = 945 + 700/210 = 1645/210
  5. 1645/210 simplified gives 47/6
  6. So, 45/10 + 70/21 = 47/6
    In mixed form: 75/6

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