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Add 45/90 and 30/70

45/90 + 30/70 is 13/14.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 70 is 630
  2. For the 1st fraction, since 90 × 7 = 630,
    45/90 = 45 × 7/90 × 7 = 315/630
  3. Likewise, for the 2nd fraction, since 70 × 9 = 630,
    30/70 = 30 × 9/70 × 9 = 270/630
  4. Add the two fractions:
    315/630 + 270/630 = 315 + 270/630 = 585/630
  5. 585/630 simplified gives 13/14
  6. So, 45/90 + 30/70 = 13/14

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