Add 90/56 and 80/70
1st number: 1 34/56, 2nd number: 1 10/70
90/56 + 80/70 is 11/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 70 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
90/56 = 90 × 5/56 × 5 = 450/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
80/70 = 80 × 4/70 × 4 = 320/280 - Add the two like fractions:
450/280 + 320/280 = 450 + 320/280 = 770/280 - 770/280 simplified gives 11/4
- So, 90/56 + 80/70 = 11/4
In mixed form: 23/4
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