Add 9/10 and 70/40, Solve 9/10 + 1 30/40 as a fraction

Add 9/10 and 70/40

1^st number: 9/10, 2^nd number: 1 30/40

9/10 + 70/40 is 53/20.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 40 is 40

Next, find the equivalent fraction of both fractional numbers with denominator 40
For the 1st fraction, since 10 × 4 = 40,
9/10 = 9 × 4/10 × 4 = 36/40
Likewise, for the 2nd fraction, since 40 × 1 = 40,
70/40 = 70 × 1/40 × 1 = 70/40
Add the two like fractions:
36/40 + 70/40 = 36 + 70/40 = 106/40
106/40 simplified gives 53/20
So, 9/10 + 70/40 = 53/20
In mixed form: 213/20

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