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Add 45/20 and 25/70

1st number: 2 5/20, 2nd number: 25/70

45/20 + 25/70 is 73/28.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 70 is 140
  2. For the 1st fraction, since 20 × 7 = 140,
    45/20 = 45 × 7/20 × 7 = 315/140
  3. Likewise, for the 2nd fraction, since 70 × 2 = 140,
    25/70 = 25 × 2/70 × 2 = 50/140
  4. Add the two fractions:
    315/140 + 50/140 = 315 + 50/140 = 365/140
  5. 365/140 simplified gives 73/28
  6. So, 45/20 + 25/70 = 73/28
    In mixed form: 217/28

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