Add 90/48 and 21/40, Solve 1 42/48 + 21/40 as a fraction

Add 90/48 and 21/40

1^st number: 1 42/48, 2^nd number: 21/40

90/48 + 21/40 is 12/5.

Find the least common denominator or LCM of the two denominators:
LCM of 48 and 40 is 240

Next, find the equivalent fraction of both fractional numbers with denominator 240
For the 1st fraction, since 48 × 5 = 240,
90/48 = 90 × 5/48 × 5 = 450/240
Likewise, for the 2nd fraction, since 40 × 6 = 240,
21/40 = 21 × 6/40 × 6 = 126/240
Add the two like fractions:
450/240 + 126/240 = 450 + 126/240 = 576/240
576/240 simplified gives 12/5
So, 90/48 + 21/40 = 12/5
In mixed form: 22/5

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