Add 42/45 and 90/28
1st number: 42/45, 2nd number: 3 6/28
42/45 + 90/28 is 871/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 28 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 45 × 28 = 1260,
42/45 = 42 × 28/45 × 28 = 1176/1260 - Likewise, for the 2nd fraction, since 28 × 45 = 1260,
90/28 = 90 × 45/28 × 45 = 4050/1260 - Add the two like fractions:
1176/1260 + 4050/1260 = 1176 + 4050/1260 = 5226/1260 - 5226/1260 simplified gives 871/210
- So, 42/45 + 90/28 = 871/210
In mixed form: 431/210
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