Add 84/80 and 54/70, Solve 1 4/80 + 54/70 as a fraction

Add 84/80 and 54/70

1^st number: 1 4/80, 2^nd number: 54/70

84/80 + 54/70 is 51/28.

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,
54/70 = 54 × 8/70 × 8 = 432/560
Add the two like fractions:
588/560 + 432/560 = 588 + 432/560 = 1020/560
1020/560 simplified gives 51/28
So, 84/80 + 54/70 = 51/28
In mixed form: 123/28

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