Add 81/35 and 15/90
1st number: 2 11/35, 2nd number: 15/90
81/35 + 15/90 is 521/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 35 × 18 = 630,
81/35 = 81 × 18/35 × 18 = 1458/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
15/90 = 15 × 7/90 × 7 = 105/630 - Add the two like fractions:
1458/630 + 105/630 = 1458 + 105/630 = 1563/630 - 1563/630 simplified gives 521/210
- So, 81/35 + 15/90 = 521/210
In mixed form: 2101/210
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