Add 81/14 and 90/40
1st number: 5 11/14, 2nd number: 2 10/40
81/14 + 90/40 is 225/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 14 × 20 = 280,
81/14 = 81 × 20/14 × 20 = 1620/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
90/40 = 90 × 7/40 × 7 = 630/280 - Add the two like fractions:
1620/280 + 630/280 = 1620 + 630/280 = 2250/280 - 2250/280 simplified gives 225/28
- So, 81/14 + 90/40 = 225/28
In mixed form: 81/28
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