Add 15/25 and 42/28
1st number: 15/25, 2nd number: 1 14/28
15/25 + 42/28 is 21/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 28 is 700
Next, find the equivalent fraction of both fractional numbers with denominator 700 - For the 1st fraction, since 25 × 28 = 700,
15/25 = 15 × 28/25 × 28 = 420/700 - Likewise, for the 2nd fraction, since 28 × 25 = 700,
42/28 = 42 × 25/28 × 25 = 1050/700 - Add the two like fractions:
420/700 + 1050/700 = 420 + 1050/700 = 1470/700 - 1470/700 simplified gives 21/10
- So, 15/25 + 42/28 = 21/10
In mixed form: 21/10
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