Add 48/90 and 81/70, Solve 48/90 + 1 11/70 as a fraction

Add 48/90 and 81/70

1^st number: 48/90, 2^nd number: 1 11/70

48/90 + 81/70 is 71/42.

Find the least common denominator or LCM of the two denominators:
LCM of 90 and 70 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 90 × 7 = 630,
48/90 = 48 × 7/90 × 7 = 336/630
Likewise, for the 2nd fraction, since 70 × 9 = 630,
81/70 = 81 × 9/70 × 9 = 729/630
Add the two like fractions:
336/630 + 729/630 = 336 + 729/630 = 1065/630
1065/630 simplified gives 71/42
So, 48/90 + 81/70 = 71/42
In mixed form: 129/42

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