Add 84/80 and 75/70, Solve 1 4/80 + 1 5/70 as a fraction

Add 84/80 and 75/70

1^st number: 1 4/80, 2^nd number: 1 5/70

84/80 + 75/70 is 297/140.

Find the least common denominator or LCM of the two denominators:
LCM of 80 and 70 is 560

Next, find the equivalent fraction of both fractional numbers with denominator 560
For the 1st fraction, since 80 × 7 = 560,
84/80 = 84 × 7/80 × 7 = 588/560
Likewise, for the 2nd fraction, since 70 × 8 = 560,
75/70 = 75 × 8/70 × 8 = 600/560
Add the two like fractions:
588/560 + 600/560 = 588 + 600/560 = 1188/560
1188/560 simplified gives 297/140
So, 84/80 + 75/70 = 297/140
In mixed form: 217/140

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