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Add 40/70 and 63/64

40/70 + 63/64 is 697/448.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 64 is 2240

    Next, find the equivalent fraction of both fractional numbers with denominator 2240
  2. For the 1st fraction, since 70 × 32 = 2240,
    40/70 = 40 × 32/70 × 32 = 1280/2240
  3. Likewise, for the 2nd fraction, since 64 × 35 = 2240,
    63/64 = 63 × 35/64 × 35 = 2205/2240
  4. Add the two like fractions:
    1280/2240 + 2205/2240 = 1280 + 2205/2240 = 3485/2240
  5. 3485/2240 simplified gives 697/448
  6. So, 40/70 + 63/64 = 697/448
    In mixed form: 1249/448

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