Add 90/70 and 12/56
1st number: 1 20/70, 2nd number: 12/56
90/70 + 12/56 is 3/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 70 × 4 = 280,
90/70 = 90 × 4/70 × 4 = 360/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
12/56 = 12 × 5/56 × 5 = 60/280 - Add the two like fractions:
360/280 + 60/280 = 360 + 60/280 = 420/280 - 420/280 simplified gives 3/2
- So, 90/70 + 12/56 = 3/2
In mixed form: 11/2
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