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Add 40/45 and 9/70

40/45 + 9/70 is 641/630.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 70 is 630
  2. For the 1st fraction, since 45 × 14 = 630,
    40/45 = 40 × 14/45 × 14 = 560/630
  3. Likewise, for the 2nd fraction, since 70 × 9 = 630,
    9/70 = 9 × 9/70 × 9 = 81/630
  4. Add the two fractions:
    560/630 + 81/630 = 560 + 81/630 = 641/630
  5. In mixed form: 111/630

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