Add 20/21 and 90/48
1st number: 20/21, 2nd number: 1 42/48
20/21 + 90/48 is 475/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 48 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 21 × 16 = 336,
20/21 = 20 × 16/21 × 16 = 320/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
90/48 = 90 × 7/48 × 7 = 630/336 - Add the two like fractions:
320/336 + 630/336 = 320 + 630/336 = 950/336 - 950/336 simplified gives 475/168
- So, 20/21 + 90/48 = 475/168
In mixed form: 2139/168
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