Solutions by everydaycalculation.com

1^{st} number: 16/45, 2^{nd} number: 1 20/70

1645 + 9070 is 517315.

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

LCM of 45 and 70 is**630**

Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 45 × 14 = 630,

1645 = 16 × 1445 × 14 = 224630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,

9070 = 90 × 970 × 9 = 810630 - Add the two like fractions:

224630 + 810630 = 224 + 810630 = 1034630 - 1034/630 simplified gives 517315
- So, 16/45 + 90/70 = 517/315

In mixed form: 1202315

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