Add 7/40 and 90/28
1st number: 7/40, 2nd number: 3 6/28
7/40 + 90/28 is 949/280.
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,
7/40 = 7 × 7/40 × 7 = 49/280 - Likewise, for the 2nd fraction, since 28 × 10 = 280,
90/28 = 90 × 10/28 × 10 = 900/280 - Add the two like fractions:
49/280 + 900/280 = 49 + 900/280 = 949/280 - So, 7/40 + 90/28 = 949/280
In mixed form: 3109/280
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