NEW YORK (Reuters) - The U.S. dollar gained on Friday after data showed a key inflation measure came in line with expectations, while personal spending and income increased, reinforcing expectations that the Federal Reserve will like cut interest rates by a smaller 25 basis points next month.

The personal consumption expenditures (PCE) price index rose 0.2% last month, in line with expectations, after an unrevised 0.1% advance in June, data showed. In the 12 months through July, the PCE price index increased 2.5%, matching June's gain.

Consumer spending was also 0.5% higher last month after expanding 0.3% in June.

The dollar extended gains against the yen after the data to 145.72 yen, up .5%, while the dollar index was up 0.2% at 101.55.