Add 70/40 and 81/28
1st number: 1 30/40, 2nd number: 2 25/28
70/40 + 81/28 is 65/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 28 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
70/40 = 70 × 7/40 × 7 = 490/280 - Likewise, for the 2nd fraction, since 28 × 10 = 280,
81/28 = 81 × 10/28 × 10 = 810/280 - Add the two like fractions:
490/280 + 810/280 = 490 + 810/280 = 1300/280 - 1300/280 simplified gives 65/14
- So, 70/40 + 81/28 = 65/14
In mixed form: 49/14
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