Add 81/20 and 70/40
1st number: 4 1/20, 2nd number: 1 30/40
81/20 + 70/40 is 29/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 20 × 2 = 40,
81/20 = 81 × 2/20 × 2 = 162/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
70/40 = 70 × 1/40 × 1 = 70/40 - Add the two like fractions:
162/40 + 70/40 = 162 + 70/40 = 232/40 - 232/40 simplified gives 29/5
- So, 81/20 + 70/40 = 29/5
In mixed form: 54/5
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