Add 98/80 and 70/50, Solve 1 18/80 + 1 20/50 as a fraction

Add 98/80 and 70/50

1^st number: 1 18/80, 2^nd number: 1 20/50

98/80 + 70/50 is 21/8.

Find the least common denominator or LCM of the two denominators:
LCM of 80 and 50 is 400

Next, find the equivalent fraction of both fractional numbers with denominator 400
For the 1st fraction, since 80 × 5 = 400,
98/80 = 98 × 5/80 × 5 = 490/400
Likewise, for the 2nd fraction, since 50 × 8 = 400,
70/50 = 70 × 8/50 × 8 = 560/400
Add the two like fractions:
490/400 + 560/400 = 490 + 560/400 = 1050/400
1050/400 simplified gives 21/8
So, 98/80 + 70/50 = 21/8
In mixed form: 25/8

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