Add 7/10 and 81/20
1st number: 7/10, 2nd number: 4 1/20
7/10 + 81/20 is 19/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 10 × 2 = 20,
7/10 = 7 × 2/10 × 2 = 14/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
81/20 = 81 × 1/20 × 1 = 81/20 - Add the two like fractions:
14/20 + 81/20 = 14 + 81/20 = 95/20 - 95/20 simplified gives 19/4
- So, 7/10 + 81/20 = 19/4
In mixed form: 43/4
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