Add 90/40 and 35/28
1st number: 2 10/40, 2nd number: 1 7/28
90/40 + 35/28 is 7/2.
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,
90/40 = 90 × 7/40 × 7 = 630/280 - Likewise, for the 2nd fraction, since 28 × 10 = 280,
35/28 = 35 × 10/28 × 10 = 350/280 - Add the two like fractions:
630/280 + 350/280 = 630 + 350/280 = 980/280 - 980/280 simplified gives 7/2
- So, 90/40 + 35/28 = 7/2
In mixed form: 31/2
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