Add 70/75 and 81/80, Solve 70/75 + 1 1/80 as a fraction

Add 70/75 and 81/80

1^st number: 70/75, 2^nd number: 1 1/80

70/75 + 81/80 is 467/240.

Find the least common denominator or LCM of the two denominators:
LCM of 75 and 80 is 1200

Next, find the equivalent fraction of both fractional numbers with denominator 1200
For the 1st fraction, since 75 × 16 = 1200,
70/75 = 70 × 16/75 × 16 = 1120/1200
Likewise, for the 2nd fraction, since 80 × 15 = 1200,
81/80 = 81 × 15/80 × 15 = 1215/1200
Add the two like fractions:
1120/1200 + 1215/1200 = 1120 + 1215/1200 = 2335/1200
2335/1200 simplified gives 467/240
So, 70/75 + 81/80 = 467/240
In mixed form: 1227/240

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