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Add 81/16 and 45/70

1st number: 5 1/16, 2nd number: 45/70

81/16 + 45/70 is 639/112.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 16 and 70 is 560

    Next, find the equivalent fraction of both fractional numbers with denominator 560
  2. For the 1st fraction, since 16 × 35 = 560,
    81/16 = 81 × 35/16 × 35 = 2835/560
  3. Likewise, for the 2nd fraction, since 70 × 8 = 560,
    45/70 = 45 × 8/70 × 8 = 360/560
  4. Add the two like fractions:
    2835/560 + 360/560 = 2835 + 360/560 = 3195/560
  5. 3195/560 simplified gives 639/112
  6. So, 81/16 + 45/70 = 639/112
    In mixed form: 579/112

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