Add 90/48 and 21/45, Solve 1 42/48 + 21/45 as a fraction

Add 90/48 and 21/45

1^st number: 1 42/48, 2^nd number: 21/45

90/48 + 21/45 is 281/120.

Find the least common denominator or LCM of the two denominators:
LCM of 48 and 45 is 720

Next, find the equivalent fraction of both fractional numbers with denominator 720
For the 1st fraction, since 48 × 15 = 720,
90/48 = 90 × 15/48 × 15 = 1350/720
Likewise, for the 2nd fraction, since 45 × 16 = 720,
21/45 = 21 × 16/45 × 16 = 336/720
Add the two like fractions:
1350/720 + 336/720 = 1350 + 336/720 = 1686/720
1686/720 simplified gives 281/120
So, 90/48 + 21/45 = 281/120
In mixed form: 241/120

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