Add 90/50 and 21/12, Solve 1 40/50 + 1 9/12 as a fraction

Add 90/50 and 21/12

1^st number: 1 40/50, 2^nd number: 1 9/12

90/50 + 21/12 is 71/20.

Find the least common denominator or LCM of the two denominators:
LCM of 50 and 12 is 300

Next, find the equivalent fraction of both fractional numbers with denominator 300
For the 1st fraction, since 50 × 6 = 300,
90/50 = 90 × 6/50 × 6 = 540/300
Likewise, for the 2nd fraction, since 12 × 25 = 300,
21/12 = 21 × 25/12 × 25 = 525/300
Add the two like fractions:
540/300 + 525/300 = 540 + 525/300 = 1065/300
1065/300 simplified gives 71/20
So, 90/50 + 21/12 = 71/20
In mixed form: 311/20

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