Solutions by everydaycalculation.com

1^{st} number: 3 9/12, 2^{nd} number: 16/70

4512 + 1670 is 557140.

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

LCM of 12 and 70 is**420**

Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 12 × 35 = 420,

4512 = 45 × 3512 × 35 = 1575420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,

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

1575420 + 96420 = 1575 + 96420 = 1671420 - 1671/420 simplified gives 557140
- So, 45/12 + 16/70 = 557/140

In mixed form: 3137140

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