Add 90/70 and 80/8
1st number: 1 20/70, 2nd number: 10 0/8
90/70 + 80/8 is 79/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 8 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 8 × 35 = 280,
80/8 = 80 × 35/8 × 35 = 2800/280 - Add the two like fractions:
360/280 + 2800/280 = 360 + 2800/280 = 3160/280 - 3160/280 simplified gives 79/7
- So, 90/70 + 80/8 = 79/7
In mixed form: 112/7
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