Add 1/18 and 90/70
1st number: 1/18, 2nd number: 1 20/70
1/18 + 90/70 is 169/126.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 18 × 35 = 630,
1/18 = 1 × 35/18 × 35 = 35/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
90/70 = 90 × 9/70 × 9 = 810/630 - Add the two like fractions:
35/630 + 810/630 = 35 + 810/630 = 845/630 - 845/630 simplified gives 169/126
- So, 1/18 + 90/70 = 169/126
In mixed form: 143/126
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