Solutions by everydaycalculation.com

960 + 1670 is 53140.

- Find the least common denominator or LCM of the two denominators:

LCM of 60 and 70 is**420**

Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,

960 = 9 × 760 × 7 = 63420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,

1670 = 16 × 670 × 6 = 96420 - Add the two like fractions:

63420 + 96420 = 63 + 96420 = 159420 - 159/420 simplified gives 53140
- So, 9/60 + 16/70 = 53/140

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