Add 15/21 and 90/48
1st number: 15/21, 2nd number: 1 42/48
15/21 + 90/48 is 145/56.
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,
15/21 = 15 × 16/21 × 16 = 240/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
90/48 = 90 × 7/48 × 7 = 630/336 - Add the two like fractions:
240/336 + 630/336 = 240 + 630/336 = 870/336 - 870/336 simplified gives 145/56
- So, 15/21 + 90/48 = 145/56
In mixed form: 233/56
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