Solutions by everydaycalculation.com

725 + 670 is 64175.

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

LCM of 25 and 70 is**350**

Next, find the equivalent fraction of both fractional numbers with denominator 350 - For the 1st fraction, since 25 × 14 = 350,

725 = 7 × 1425 × 14 = 98350 - Likewise, for the 2nd fraction, since 70 × 5 = 350,

670 = 6 × 570 × 5 = 30350 - Add the two like fractions:

98350 + 30350 = 98 + 30350 = 128350 - 128/350 simplified gives 64175
- So, 7/25 + 6/70 = 64/175

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