Add 81/14 and 42/90
1st number: 5 11/14, 2nd number: 42/90
81/14 + 42/90 is 1313/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 14 × 45 = 630,
81/14 = 81 × 45/14 × 45 = 3645/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
42/90 = 42 × 7/90 × 7 = 294/630 - Add the two like fractions:
3645/630 + 294/630 = 3645 + 294/630 = 3939/630 - 3939/630 simplified gives 1313/210
- So, 81/14 + 42/90 = 1313/210
In mixed form: 653/210
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