Add 20/70 and 81/28
1st number: 20/70, 2nd number: 2 25/28
20/70 + 81/28 is 89/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
20/70 = 20 × 2/70 × 2 = 40/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
81/28 = 81 × 5/28 × 5 = 405/140 - Add the two like fractions:
40/140 + 405/140 = 40 + 405/140 = 445/140 - 445/140 simplified gives 89/28
- So, 20/70 + 81/28 = 89/28
In mixed form: 35/28
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