Add 27/90 and 90/70
1st number: 27/90, 2nd number: 1 20/70
27/90 + 90/70 is 111/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
27/90 = 27 × 7/90 × 7 = 189/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
90/70 = 90 × 9/70 × 9 = 810/630 - Add the two like fractions:
189/630 + 810/630 = 189 + 810/630 = 999/630 - 999/630 simplified gives 111/70
- So, 27/90 + 90/70 = 111/70
In mixed form: 141/70
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