Solutions by everydaycalculation.com

1^{st} number: 1 1/20, 2^{nd} number: 2 19/28

2120 + 7528 is 26170.

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

LCM of 20 and 28 is**140**

Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,

2120 = 21 × 720 × 7 = 147140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,

7528 = 75 × 528 × 5 = 375140 - Add the two like fractions:

147140 + 375140 = 147 + 375140 = 522140 - 522/140 simplified gives 26170
- So, 21/20 + 75/28 = 261/70

In mixed form: 35170

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