Add 21/90 and 90/48
1st number: 21/90, 2nd number: 1 42/48
21/90 + 90/48 is 253/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 48 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 90 × 8 = 720,
21/90 = 21 × 8/90 × 8 = 168/720 - Likewise, for the 2nd fraction, since 48 × 15 = 720,
90/48 = 90 × 15/48 × 15 = 1350/720 - Add the two like fractions:
168/720 + 1350/720 = 168 + 1350/720 = 1518/720 - 1518/720 simplified gives 253/120
- So, 21/90 + 90/48 = 253/120
In mixed form: 213/120
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