Add 80/70 and 84/45
1st number: 1 10/70, 2nd number: 1 39/45
80/70 + 84/45 is 316/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 45 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
80/70 = 80 × 9/70 × 9 = 720/630 - Likewise, for the 2nd fraction, since 45 × 14 = 630,
84/45 = 84 × 14/45 × 14 = 1176/630 - Add the two like fractions:
720/630 + 1176/630 = 720 + 1176/630 = 1896/630 - 1896/630 simplified gives 316/105
- So, 80/70 + 84/45 = 316/105
In mixed form: 31/105
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