Add 90/40 and 70/56
1st number: 2 10/40, 2nd number: 1 14/56
90/40 + 70/56 is 7/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 56 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 56 × 5 = 280,
70/56 = 70 × 5/56 × 5 = 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 + 70/56 = 7/2
In mixed form: 31/2
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