Add 81/7 and 4/40
1st number: 11 4/7, 2nd number: 4/40
81/7 + 4/40 is 817/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 7 × 40 = 280,
81/7 = 81 × 40/7 × 40 = 3240/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
4/40 = 4 × 7/40 × 7 = 28/280 - Add the two like fractions:
3240/280 + 28/280 = 3240 + 28/280 = 3268/280 - 3268/280 simplified gives 817/70
- So, 81/7 + 4/40 = 817/70
In mixed form: 1147/70
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