Add 1/45 and 75/70
1st number: 1/45, 2nd number: 1 5/70
1/45 + 75/70 is 689/630.
Steps for adding fractions
- 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,
1/45 = 1 × 14/45 × 14 = 14/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
75/70 = 75 × 9/70 × 9 = 675/630 - Add the two like fractions:
14/630 + 675/630 = 14 + 675/630 = 689/630 - So, 1/45 + 75/70 = 689/630
In mixed form: 159/630
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