Add 90/28 and 60/40
1st number: 3 6/28, 2nd number: 1 20/40
90/28 + 60/40 is 33/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 28 × 10 = 280,
90/28 = 90 × 10/28 × 10 = 900/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
60/40 = 60 × 7/40 × 7 = 420/280 - Add the two like fractions:
900/280 + 420/280 = 900 + 420/280 = 1320/280 - 1320/280 simplified gives 33/7
- So, 90/28 + 60/40 = 33/7
In mixed form: 45/7
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