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Add 21/7 and 70/45

1st number: 3 0/7, 2nd number: 1 25/45

21/7 + 70/45 is 41/9.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 45 is 315

    Next, find the equivalent fraction of both fractional numbers with denominator 315
  2. For the 1st fraction, since 7 × 45 = 315,
    21/7 = 21 × 45/7 × 45 = 945/315
  3. Likewise, for the 2nd fraction, since 45 × 7 = 315,
    70/45 = 70 × 7/45 × 7 = 490/315
  4. Add the two like fractions:
    945/315 + 490/315 = 945 + 490/315 = 1435/315
  5. 1435/315 simplified gives 41/9
  6. So, 21/7 + 70/45 = 41/9
    In mixed form: 45/9

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