Add 3/90 and 45/28
1st number: 3/90, 2nd number: 1 17/28
3/90 + 45/28 is 689/420.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 28 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 90 × 14 = 1260,
3/90 = 3 × 14/90 × 14 = 42/1260 - Likewise, for the 2nd fraction, since 28 × 45 = 1260,
45/28 = 45 × 45/28 × 45 = 2025/1260 - Add the two like fractions:
42/1260 + 2025/1260 = 42 + 2025/1260 = 2067/1260 - 2067/1260 simplified gives 689/420
- So, 3/90 + 45/28 = 689/420
In mixed form: 1269/420
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